Gerald E. Mader — 16 Patents at Von Duprin

Gerald E. Mader has been granted 16 US patents while listed as an inventor at Von Duprin. The first was granted in 1987 and the most recent in May 1999. Gerald E. Mader ranks #284,196 of 4,157,543 US inventors in our database (top 6.8%). Patent records list Gerald E. Mader in Indianapolis, IN, US.

Issued Patents All Time

Showing 1–16 of 16 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
5904384	Push pad trigger release exit device with infinite deadlocking	William P. Dye, Matthew S. Prucinsky	1999-05-18	$94,133,000
5762385	Push pad trigger release exit device with infinite deadlocking	William P. Dye, Matthew S. Prucinsky	1998-06-09	$25,193,000
5690501	"Electrical power transfer for 3/4"" offset pivots"	—	1997-11-25	$10,275,000
5673949	Push pad trigger release for a vertical rod exit device	William P. Dye, Matthew S. Prucinsky	1997-10-07	$36,396,000
5609371	Push pad trigger release exit device with infinite deadlocking	William P. Dye, Matthew S. Prucinsky	1997-03-11	$4,684,000
5570916	Breakaway lever clutch with vertical lift trim	—	1996-11-05	$26,187,000
5566994	Breakaway lever with reset mechanism	—	1996-10-22	$6,967,000
5564760	Door lever assembly having non-machined fastenerless trim	—	1996-10-15	$7,292,000
5520427	Breakaway lever with wedge release mechanism	—	1996-05-28	$9,292,000
5516161	Breakaway lever clutch with cam drive pin	Paul J. Haeck	1996-05-14	$9,006,000
5484179	Failsafe electric locking lever trim	—	1996-01-16	$11,477,000
5464259	Door latch assembly with meltable fuse mechanism	Richard B. Cohrs	1995-11-07	$10,329,000
5445423	Breakaway lever clutch	—	1995-08-29	$10,129,000
4977990	Free floating dam for a fluid shear coupling apparatus	—	1990-12-18	$451,000
4913273	Fluid shear coupling apparatus having a modulating valve with a movable aperture	—	1990-04-03	$5,854,000
4653624	Fluid shear coupling apparatus having fluid modulating valve	—	1987-03-31	$12,328,000

Gerald E. Mader — 16 Patents

Issued Patents All Time

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