Richard Geringer — 28 Patents at Security Door Controls

Richard Geringer has been granted 28 US patents while listed as an inventor at Security Door Controls. The first was granted in 1986 and the most recent in October 2014. Richard Geringer ranks #134,628 of 4,157,543 US inventors in our database (top 3.2%). Patent records list Richard Geringer in Agoura, CA, US.

Issued Patents All Time

Showing 1–25 of 28 patents

Patent #	Title	Co-Inventors	Date
8851530	Electric latch retraction bar	Arthur Geringer, David Geringer	2014-10-07
8851532	Electric strike	Arthur Geringer, David Geringer	2014-10-07
7963574	Fail safe/fail secure lock with quick change access window	Arthur Geringer, David Geringer	2011-06-21
7698918	Interchangeable lock operable in fail safe or fail secure modes	Arthur Geringer, David Geringer	2010-04-20
7614669	Interchangeable lock operable in fail safe or fail secure modes	Arthur Geringer, David Geringer	2009-11-10
7540542	Electric strike	Arthur Geringer, David Geringer	2009-06-02
7246827	Fail safe/fail secure lock with quick change access window	Arthur Geringer, David Geringer	2007-07-24
6363763	Lock with sensor	Arthur Geringer, David Geringer	2002-04-02
6048000	Delayed egress panic device with internal deadlocking bolt mechanism	Arthur Geringer, David Geringer	2000-04-11
5969440	Push bar with redundant pressure sensors and fail safe mechanical switch	Christopher L. Young, David Geringer	1999-10-19
5876073	Electrically operable door locking apparatus and method for operating the same	Arthur Geringer, David Geringer	1999-03-02
5564228	Pressure-actuated exit door access bar for an electronic delayed egress locking system	Arthur Geringer, David Geringer	1996-10-15
5525880	Pressure-actuated exit door access bar for an electronic delayed egress locking system	Arthur Geringer, David Geringer	1996-06-11
5429399	Electronic delayed egress locking system	Arthur Geringer, David Geringer	1995-07-04
5376910	Electromagnet coil assembly and mounting apparatus and method for use in installing same	Arthur Geringer, David Geringer	1994-12-27
5257841	Electrical monitoring strike device	Arthur Geringer, David Geringer	1993-11-02
5141271	Alignment device for electromagnetic door lock	Arthur Geringer, David Geringer	1992-08-25
5033779	Electromagnetic door lock device	Arthur Geringer, David Geringer	1991-07-23
5006723	Electromagnetic door lock device	Arthur Geringer, David Geringer	1991-04-09
5000497	Electromagnetic door lock device	Arthur Geringer, David Geringer	1991-03-19
4986581	Electromagnetic door lock device	Arthur Geringer, David Geringer	1991-01-22
4826223	Electromagnetic door lock device	Arthur Geringer, David Geringer	1989-05-02
4641867	Door closure assembly	Arthur Geringer, David Geringer	1987-02-10
4634155	Power actuated door locking and monitoring assembly	Arthur Geringer, David Geringer	1987-01-06
4623178	Lock assembly	Arthur Geringer, David Geringer	1986-11-18

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Richard Geringer — 28 Patents

Issued Patents All Time

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