DW

David A. Weitzenhof

BF Bridgestone Firestone: 5 patents #30 of 276Top 15%
TR The Firestone Tire & Rubber: 5 patents #29 of 233Top 15%
BP Bfs Diversified Products: 2 patents #13 of 69Top 20%
Bridgestone: 2 patents #1,066 of 2,860Top 40%
BT Bridgestone Firestone North American Tire: 2 patents #47 of 133Top 40%
BR Bridgestone/Firestone Research: 2 patents #20 of 54Top 40%
Overall (All Time): #259,849 of 4,157,543Top 7%
18
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6868717 Method and device to encapsulate tire tag Russell W. Koch, Walter Tomaszewski, Paul B. Wilson 2005-03-22
6637733 Air spring with vibration isolation Mark D. Hilburger 2003-10-28
6516673 Device to encapsulate a pressure sensor Russell W. Koch, Walter Tomaszewski 2003-02-11
6474630 Air spring swage assembly 2002-11-05
6386254 Device to encapsulate a substrate containing sensitive electronic components and a pressure sensor pack Russell W. Koch, Walter Tomaszewski 2002-05-14
RE37015 Vibration damping device using ER fluids having multiple electrodes John D. Rensel 2001-01-16
6161430 Device to encapsulate a substrate containing sensitive electronic components and a pressure sensor pack Russell W. Koch, Walter Tomaszewski 2000-12-19
5590745 Vibration damping device using ER fluids having multiple electrodes John D. Rensel 1997-01-07
5588509 Splined vibration damping device using ER fluids Isao Watanabe, Carmen S. Santa Maria, William S. Niaura, Gareth H. McKinley 1996-12-31
5449150 Vibration damping device with an electrode and having rolling lobes of different radii Isao Watanabe, John D. Rensel, Saturo Kawamata 1995-09-12
5180145 Vibration damping device Isao Watanabe, John D. Rensel 1993-01-19
5009401 Air spring suspension system with dual path isolation 1991-04-23
4899995 Clamp ring assembly for air spring Keith E. Hoffman, Wayne H. Geno 1990-02-13
4798369 Ultrasonic air spring system Wayne H. Geno 1989-01-17
4793598 Air spring having internal sealing band and method of installing same Wayne H. Geno 1988-12-27
4712776 Air spring suspension system Wayne H. Geno 1987-12-15
4623162 Dual trailing arm vehicle suspension system Charles F. Sayre 1986-11-18
4264019 Beverage dispenser Robert Roberts 1981-04-28