Assignment of Assignor's Interest

Recorded: 2017-12-14 Pages: 6

Assignor

JOHNSON, WILLIAM B.

Executed: 2017-11-28

Assignee

DENTSPLY SIRONA, INC.

221 WEST PHILADELPHIA STREET, SUITE 60, YORK, PENNSYLVANIA, 17401

Covered Properties (6)

Endodontic File Combining Active and Passive Cutting Edges

Patent: 7,766,657 →

Application: 11/199,748 →

Publication: US 2007/0037117

Longitudinally Ground File Having Increased Resistance to Torsional and Cyclic Fatigue Failure

Patent: 8,413,330 →

Application: 12/047,369 →

Publication: US 2009/0229129

Reciprocal Reverse Rotation Endodontic File

Patent: 8,047,842 →

Application: 12/193,411 →

Publication: US 2010/0040994

Endodontic File Combining Active and Passive Cutting Edges

Patent: 8,727,772 →

Application: 12/848,688 →

Publication: US 2010/0297578

Multi-Planar Pre-Curved Rotary Endodontic File

Patent: 9,078,722 →

Application: 13/354,699 →

Publication: US 2013/0189644

Longitudinally Ground File Having Increased Resistance To Torsional and Cyclic Fatigue Failure

Patent: 8,789,444 →

Application: 13/858,526 →

Publication: US 2013/0263700

Related Assignments (2)

Other recorded transfers of the patents in this record — the chain of ownership.