PlainSite :: Patent Application No. 11384611: Method Of Operating A Distributed Call Progress Tone Detection System

Date Recorded	USPTO Reel / Frame	Parties
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

March 2, 2015	Patent Assignment 35118/257 Merger And Change Of Name (see Document For Details)	Assignors Aastra Technologies Ltd. Aastra Technologies Ltd. Assignees Mitel Networks Corporation

March 2, 2015	Patent Assignment 35118/257 Merger And Change Of Name (see Document For Details)	Assignors Aastra Technologies Ltd. Aastra Technologies Ltd. Assignees Mitel Networks Corporation

March 2, 2015	Patent Assignment 35118/257 Merger And Change Of Name (see Document For Details)	Assignors Aastra Technologies Ltd. Aastra Technologies Ltd. Assignees Mitel Networks Corporation

March 10, 2015	Patent Assignment 35132/102 Assignment Of Assignors Interest (see Document For Details).	Assignors Chambers, David Dye, Steve E Osborn, James G Assignees Intecom Inc.

March 10, 2015	Patent Assignment 35176/753 Change Of Name (see Document For Details).	Assignors Intecom Inc. Assignees Eads Telecom North America 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 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 41704/745 Security Interest (see Document For Details).	Assignors Mitel Communications 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.

December 18, 2017	Patent Assignment 44905/1 Change Of Name (see Document For Details).	Assignors Eads Telecom North America Inc. Assignees Aastra Intecom Inc.

December 18, 2017	Patent Assignment 44906/722 Change Of Name (see Document For Details).	Assignors Aastra Intecom Inc. Assignees Aastra Usa

December 18, 2017	Patent Assignment 44906/748 Change Of Name (see Document For Details).	Assignors Aastra Usa Inc. Assignees Mitel Communications Inc.

December 3, 2018	Patent Assignment 47659/459 Release By Secured Party (see Document For Details).	Assignors Citizens Bank, NA Assignees Mitel Communications Inc.

December 13, 2018	Patent Assignment 47772/443 Security Interest (see Document For Details).	Assignors Mitel Communications Inc. Assignees Credit Suisse Ag

December 13, 2018	Patent Assignment 47772/475 Security Interest (see Document For Details).	Assignors Mitel Communications 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

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