PlainSite :: Patent Application No. 09894047: Computer Telephony (ct) Network Serving Multiple Telephone Switches

Date Recorded	USPTO Reel / Frame	Parties
June 28, 2001	Patent Assignment 11956/687 Assignment Of Assignors Interest (see Document For Details).	Assignors Schultz, Laura Dancho, Mark Mello, David Assignees Inter-tel, Inc.

September 14, 2007	Patent Assignment 19825/303 Security Agreement	Assignors Inter-tel (delaware), Inc. Assignees Morgan, Stanley &.

September 14, 2007	Patent Assignment 19825/322 Security Agreement	Assignors Inter-tel (delaware), Inc. Assignees Morgan, Stanley &.

August 20, 2009	Patent Assignment 23119/766 Notice Of Patent Assignment	Assignors Morgan, Stanley &. Assignees Wilmington Trust Fsb

April 2, 2013	Patent Assignment 30165/799 Release Of Security Interest In Patents	Assignors Wilmington Trust, NA Assignees Inter-tel (delaware) Inc.

April 8, 2013	Patent Assignment 30176/72 Security Agreement	Assignors Mitel Us Holdings, Inc. Assignees Wilmington Trust, NA

April 8, 2013	Patent Assignment 30176/207 Security Interest (see Document For Details).	Assignors Mitel Us Holdings, Inc. Assignees Bank Of America, NA

April 15, 2013	Patent Assignment 30248/448 Release Of Security Interest In Patents	Assignors Bank Of New York Morgan, Stanley &. Morgan Stanley Senior Funding, Inc. Assignees Inter-tel (delaware) Inc.

February 6, 2014	Patent Assignment 32167/355 Release By Secured Party (see Document For Details).	Assignors Bank Of America, NA Assignees Mitel Networks Corporation Mitel Us Holdings, Inc.

February 6, 2014	Patent Assignment 32167/366 Release By Secured Party (see Document For Details).	Assignors Wilmington Trust, NA Assignees Mitel Networks Corporation Mitel Us Holdings, Inc.

February 14, 2014	Patent Assignment 32264/760 Security Agreement	Assignors Mitel Us Holdings, Inc. Mitel Networks Corporation Aastra Usa Inc. Assignees Jefferies Finance LLC

February 14, 2014	Patent Assignment 32264/760 Security Agreement	Assignors Mitel Us Holdings, Inc. Mitel Networks Corporation Aastra Usa Inc. Assignees Jefferies Finance LLC

February 14, 2014	Patent Assignment 32264/760 Security Agreement	Assignors Mitel Us Holdings, Inc. Mitel Networks Corporation Aastra Usa Inc. Assignees Jefferies Finance LLC

February 14, 2014	Patent Assignment 32264/760 Security Agreement	Assignors Mitel Us Holdings, Inc. Mitel Networks Corporation Aastra Usa Inc. Assignees Jefferies Finance LLC

February 14, 2014	Patent Assignment 32264/760 Security Agreement	Assignors Mitel Us Holdings, Inc. Mitel Networks Corporation Aastra Usa Inc. Assignees Jefferies Finance LLC

February 14, 2014	Patent Assignment 32264/760 Security Agreement	Assignors Mitel Us Holdings, Inc. Mitel Networks Corporation Aastra Usa Inc. Assignees Jefferies Finance LLC

February 14, 2014	Patent Assignment 32264/760 Security Agreement	Assignors Mitel Us Holdings, Inc. Mitel Networks Corporation Aastra Usa Inc. Assignees Jefferies Finance LLC

February 14, 2014	Patent Assignment 32264/760 Security Agreement	Assignors Mitel Us Holdings, Inc. Mitel Networks Corporation Aastra Usa Inc. Assignees Jefferies Finance LLC

February 14, 2014	Patent Assignment 32264/760 Security Agreement	Assignors Mitel Us Holdings, Inc. Mitel Networks Corporation Aastra Usa Inc. Assignees Jefferies Finance LLC

February 14, 2014	Patent Assignment 32264/760 Security Agreement	Assignors Mitel Us Holdings, Inc. Mitel Networks Corporation Aastra Usa Inc. Assignees Jefferies Finance LLC

February 14, 2014	Patent Assignment 32264/760 Security Agreement	Assignors Mitel Us Holdings, Inc. Mitel Networks Corporation Aastra Usa Inc. Assignees Jefferies Finance LLC

February 14, 2014	Patent Assignment 32264/760 Security Agreement	Assignors Mitel Us Holdings, Inc. Mitel Networks Corporation Aastra Usa Inc. Assignees Jefferies Finance LLC

February 14, 2014	Patent Assignment 32264/760 Security Agreement	Assignors Mitel Us Holdings, Inc. Mitel Networks Corporation Aastra Usa Inc. Assignees Jefferies Finance LLC

February 14, 2014	Patent Assignment 32264/760 Security Agreement	Assignors Mitel Us Holdings, Inc. Mitel Networks Corporation Aastra Usa Inc. Assignees Jefferies Finance LLC

February 14, 2014	Patent Assignment 32264/760 Security Agreement	Assignors Mitel Us Holdings, Inc. Mitel Networks Corporation Aastra Usa Inc. Assignees Jefferies Finance LLC

May 1, 2015	Patent Assignment 35562/157 Release By Secured Party (see Document For Details).	Assignors Jefferies Finance LLC Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel Communications Inc.

May 1, 2015	Patent Assignment 35562/157 Release By Secured Party (see Document For Details).	Assignors Jefferies Finance LLC Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel Communications Inc.

May 1, 2015	Patent Assignment 35562/157 Release By Secured Party (see Document For Details).	Assignors Jefferies Finance LLC Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel Communications Inc.

May 1, 2015	Patent Assignment 35562/157 Release By Secured Party (see Document For Details).	Assignors Jefferies Finance LLC Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel Communications Inc.

May 1, 2015	Patent Assignment 35562/157 Release By Secured Party (see Document For Details).	Assignors Jefferies Finance LLC Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel Communications Inc.

May 1, 2015	Patent Assignment 35562/157 Release By Secured Party (see Document For Details).	Assignors Jefferies Finance LLC Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel Communications Inc.

May 1, 2015	Patent Assignment 35562/157 Release By Secured Party (see Document For Details).	Assignors Jefferies Finance LLC Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel Communications Inc.

May 1, 2015	Patent Assignment 35562/157 Release By Secured Party (see Document For Details).	Assignors Jefferies Finance LLC Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel Communications Inc.

May 1, 2015	Patent Assignment 35562/157 Release By Secured Party (see Document For Details).	Assignors Jefferies Finance LLC Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel Communications Inc.

May 1, 2015	Patent Assignment 35562/157 Release By Secured Party (see Document For Details).	Assignors Jefferies Finance LLC Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel Communications Inc.

May 1, 2015	Patent Assignment 35562/157 Release By Secured Party (see Document For Details).	Assignors Jefferies Finance LLC Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel Communications Inc.

May 1, 2015	Patent Assignment 35562/157 Release By Secured Party (see Document For Details).	Assignors Jefferies Finance LLC Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel Communications Inc.

May 1, 2015	Patent Assignment 35562/157 Release By Secured Party (see Document For Details).	Assignors Jefferies Finance LLC Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel Communications Inc.

May 1, 2015	Patent Assignment 35562/157 Release By Secured Party (see Document For Details).	Assignors Jefferies Finance LLC Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel Communications Inc.

May 1, 2015	Patent Assignment 35562/157 Release By Secured Party (see Document For Details).	Assignors Jefferies Finance LLC Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel Communications Inc.

May 29, 2015	Patent Assignment 35797/261 Security Interest (see Document For Details).	Assignors Mitel Us Holdings, Inc. Mitel (delaware), Inc. Mitel Networks, Inc. Mitel Communications Inc. Mavenir Systems, Inc. Mitel Business Systems, Inc. Assignees Bank Of America, NA

May 29, 2015	Patent Assignment 35797/261 Security Interest (see Document For Details).	Assignors Mitel Us Holdings, Inc. Mitel (delaware), Inc. Mitel Networks, Inc. Mitel Communications Inc. Mavenir Systems, Inc. Mitel Business Systems, Inc. Assignees Bank Of America, NA

May 29, 2015	Patent Assignment 35797/261 Security Interest (see Document For Details).	Assignors Mitel Us Holdings, Inc. Mitel (delaware), Inc. Mitel Networks, Inc. Mitel Communications Inc. Mavenir Systems, Inc. Mitel Business Systems, Inc. Assignees Bank Of America, NA

May 29, 2015	Patent Assignment 35797/261 Security Interest (see Document For Details).	Assignors Mitel Us Holdings, Inc. Mitel (delaware), Inc. Mitel Networks, Inc. Mitel Communications Inc. Mavenir Systems, Inc. Mitel Business Systems, Inc. Assignees Bank Of America, NA

May 29, 2015	Patent Assignment 35797/261 Security Interest (see Document For Details).	Assignors Mitel Us Holdings, Inc. Mitel (delaware), Inc. Mitel Networks, Inc. Mitel Communications Inc. Mavenir Systems, Inc. Mitel Business Systems, Inc. Assignees Bank Of America, NA

May 29, 2015	Patent Assignment 35797/261 Security Interest (see Document For Details).	Assignors Mitel Us Holdings, Inc. Mitel (delaware), Inc. Mitel Networks, Inc. Mitel Communications Inc. Mavenir Systems, Inc. Mitel Business Systems, Inc. Assignees Bank Of America, NA

May 29, 2015	Patent Assignment 35797/261 Security Interest	Assignors Mitel Us Holdings, Inc. Mitel (delaware), Inc. Mitel Networks, Inc. Mitel Communications Inc. Mavenir Systems, Inc. Mitel Business Systems, Inc. Assignees Bank Of America, NA

March 23, 2017	Patent Assignment 41707/142 Security Interest (see Document For Details).	Assignors Mitel (delaware), Inc. Assignees Citizens Bank, NA

March 25, 2017	Patent Assignment 42244/461 Release By Secured Party (see Document For Details).	Assignors Bank Of America, NA Bank Of America Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel (delaware), Inc. Mitel Networks, Inc. Mitel Communications, Inc. Mitel Business Systems, Inc.

March 25, 2017	Patent Assignment 42244/461 Release By Secured Party (see Document For Details).	Assignors Bank Of America, NA Bank Of America Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel (delaware), Inc. Mitel Networks, Inc. Mitel Communications, Inc. Mitel Business Systems, Inc.

March 25, 2017	Patent Assignment 42244/461 Release By Secured Party (see Document For Details).	Assignors Bank Of America, NA Bank Of America Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel (delaware), Inc. Mitel Networks, Inc. Mitel Communications, Inc. Mitel Business Systems, Inc.

March 25, 2017	Patent Assignment 42244/461 Release By Secured Party (see Document For Details).	Assignors Bank Of America, NA Bank Of America Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel (delaware), Inc. Mitel Networks, Inc. Mitel Communications, Inc. Mitel Business Systems, Inc.

March 25, 2017	Patent Assignment 42244/461 Release By Secured Party (see Document For Details).	Assignors Bank Of America, NA Bank Of America Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel (delaware), Inc. Mitel Networks, Inc. Mitel Communications, Inc. Mitel Business Systems, Inc.

March 25, 2017	Patent Assignment 42244/461 Release By Secured Party (see Document For Details).	Assignors Bank Of America, NA Bank Of America Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel (delaware), Inc. Mitel Networks, Inc. Mitel Communications, Inc. Mitel Business Systems, Inc.

March 25, 2017	Patent Assignment 42244/461 Release By Secured Party (see Document For Details).	Assignors Bank Of America, NA Bank Of America Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel (delaware), Inc. Mitel Networks, Inc. Mitel Communications, Inc. Mitel Business Systems, Inc.

March 25, 2017	Patent Assignment 42244/461 Release By Secured Party (see Document For Details).	Assignors Bank Of America, NA Bank Of America Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel (delaware), Inc. Mitel Networks, Inc. Mitel Communications, Inc. Mitel Business Systems, Inc.

March 25, 2017	Patent Assignment 42244/461 Release By Secured Party (see Document For Details).	Assignors Bank Of America, NA Bank Of America Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel (delaware), Inc. Mitel Networks, Inc. Mitel Communications, Inc. Mitel Business Systems, Inc.

March 25, 2017	Patent Assignment 42244/461 Release By Secured Party (see Document For Details).	Assignors Bank Of America, NA Bank Of America Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel (delaware), Inc. Mitel Networks, Inc. Mitel Communications, Inc. Mitel Business Systems, Inc.

March 25, 2017	Patent Assignment 42244/461 Release By Secured Party (see Document For Details).	Assignors Bank Of America, NA Bank Of America Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel (delaware), Inc. Mitel Networks, Inc. Mitel Communications, Inc. Mitel Business Systems, Inc.

March 25, 2017	Patent Assignment 42244/461 Release By Secured Party (see Document For Details).	Assignors Bank Of America, NA Bank Of America Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel (delaware), Inc. Mitel Networks, Inc. Mitel Communications, Inc. Mitel Business Systems, Inc.

March 25, 2017	Patent Assignment 42244/461 Release By Secured Party (see Document For Details).	Assignors Bank Of America, NA Bank Of America Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel (delaware), Inc. Mitel Networks, Inc. Mitel Communications, Inc. Mitel Business Systems, Inc.

March 25, 2017	Patent Assignment 42244/461 Release By Secured Party (see Document For Details).	Assignors Bank Of America, NA Bank Of America Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel (delaware), Inc. Mitel Networks, Inc. Mitel Communications, Inc. Mitel Business Systems, Inc.

March 25, 2017	Patent Assignment 42244/461 Release By Secured Party (see Document For Details).	Assignors Bank Of America, NA Bank Of America Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel (delaware), Inc. Mitel Networks, Inc. Mitel Communications, Inc. Mitel Business Systems, Inc.

March 25, 2017	Patent Assignment 42244/461 Release By Secured Party (see Document For Details).	Assignors Bank Of America, NA Bank Of America Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel (delaware), Inc. Mitel Networks, Inc. Mitel Communications, Inc. Mitel Business Systems, Inc.

March 25, 2017	Patent Assignment 42244/461 Release By Secured Party (see Document For Details).	Assignors Bank Of America, NA Bank Of America Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel (delaware), Inc. Mitel Networks, Inc. Mitel Communications, Inc. Mitel Business Systems, Inc.

March 25, 2017	Patent Assignment 42244/461 Release By Secured Party (see Document For Details).	Assignors Bank Of America, NA Bank Of America Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel (delaware), Inc. Mitel Networks, Inc. Mitel Communications, Inc. Mitel Business Systems, Inc.

March 25, 2017	Patent Assignment 42244/461 Release By Secured Party (see Document For Details).	Assignors Bank Of America, NA Bank Of America Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel (delaware), Inc. Mitel Networks, Inc. Mitel Communications, Inc. Mitel Business Systems, Inc.

March 25, 2017	Patent Assignment 42244/461 Release By Secured Party (see Document For Details).	Assignors Bank Of America, NA Bank Of America Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel (delaware), Inc. Mitel Networks, Inc. Mitel Communications, Inc. Mitel Business Systems, Inc.

March 25, 2017	Patent Assignment 42244/461 Release By Secured Party (see Document For Details).	Assignors Bank Of America, NA Bank Of America Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel (delaware), Inc. Mitel Networks, Inc. Mitel Communications, Inc. Mitel Business Systems, Inc.

March 25, 2017	Patent Assignment 42244/461 Release By Secured Party (see Document For Details).	Assignors Bank Of America, NA Bank Of America Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel (delaware), Inc. Mitel Networks, Inc. Mitel Communications, Inc. Mitel Business Systems, Inc.

March 25, 2017	Patent Assignment 42244/461 Release By Secured Party (see Document For Details).	Assignors Bank Of America, NA Bank Of America Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel (delaware), Inc. Mitel Networks, Inc. Mitel Communications, Inc. Mitel Business Systems, Inc.

March 25, 2017	Patent Assignment 42244/461 Release By Secured Party (see Document For Details).	Assignors Bank Of America, NA Bank Of America Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel (delaware), Inc. Mitel Networks, Inc. Mitel Communications, Inc. Mitel Business Systems, Inc.

March 25, 2017	Patent Assignment 42244/461 Release By Secured Party (see Document For Details).	Assignors Bank Of America, NA Bank Of America Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel (delaware), Inc. Mitel Networks, Inc. Mitel Communications, Inc. Mitel Business Systems, Inc.

March 25, 2017	Patent Assignment 42244/461 Release By Secured Party (see Document For Details).	Assignors Bank Of America, NA Bank Of America Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel (delaware), Inc. Mitel Networks, Inc. Mitel Communications, Inc. Mitel Business Systems, Inc.

March 25, 2017	Patent Assignment 42244/461 Release By Secured Party (see Document For Details).	Assignors Bank Of America, NA Bank Of America Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel (delaware), Inc. Mitel Networks, Inc. Mitel Communications, Inc. Mitel Business Systems, Inc.

March 25, 2017	Patent Assignment 42244/461 Release By Secured Party (see Document For Details).	Assignors Bank Of America, NA Bank Of America Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel (delaware), Inc. Mitel Networks, Inc. Mitel Communications, Inc. Mitel Business Systems, Inc.

March 25, 2017	Patent Assignment 42244/461 Release Of Security Interest	Assignors Bank Of America, NA Bank Of America Assignees Mitel Us Holdings, Inc. Mitel Networks Corporation Mitel (delaware), Inc. Mitel Networks, Inc. Mitel Communications, Inc. Mitel Business Systems, Inc.

October 12, 2018	Patent Assignment 47151/92 Merger And Change Of Name (see Document For Details)	Assignors Inter-tel, Inc. Inter-tel (delaware), Inc. Assignees Inter-tel (delaware), Inc.

October 12, 2018	Patent Assignment 47230/697 Change Of Name (see Document For Details).	Assignors Inter-tel (delaware), Inc. Assignees Mitel (delaware), Inc.

December 3, 2018	Patent Assignment 47659/792 Release By Secured Party (see Document For Details).	Assignors Citizens Bank, NA Assignees 1966 Mitel (delaware), Inc.

December 13, 2018	Patent Assignment 47772/276 Security Interest (see Document For Details).	Assignors Mitel (delaware), Inc. Assignees Credit Suisse Ag

December 13, 2018	Patent Assignment 47772/293 Security Interest (see Document For Details).	Assignors Mitel (delaware), Inc. Assignees Credit Suisse Ag

January 14, 2025	Patent Assignment 69896/827 Notice Of Succession Of Agency - 4l	Assignors Ubs AG Assignees Ankura Trust Company, LLC

January 14, 2025	Patent Assignment 69896/827 Notice Of Succession Of Agency - 4l	Assignors Ubs AG Assignees Ankura Trust Company, LLC

January 14, 2025	Patent Assignment 69897/46 Notice Of Succession Of Agency - 5l	Assignors Ubs AG Assignees Ankura Trust Company, LLC

January 14, 2025	Patent Assignment 69897/46 Notice Of Succession Of Agency - 5l	Assignors Ubs AG Assignees Ankura Trust Company, LLC

June 24, 2025	Patent Assignment 71722/721 Release Of Security Interest	Assignors Ankura Trust Company, LLC Assignees Mitel (delaware), Inc. Mitel Communications, Inc. Mitel Cloud Services, Inc. Mitel Networks, Inc. Mitel Networks Corporation

AI text generation	None
AI document summarization	None
AI-augmented search	None
AI-generated images	None
AI chat or Q&A interface	Linkable via MCP
Third party AI contribution in government documents	Possible