DP

David J. B. Perkins

CG Chrysler Group: 5 patents #205 of 2,641Top 8%
BF Bridgestone Firestone: 4 patents #43 of 276Top 20%
AL Apsley Metals Limited: 3 patents #7 of 12Top 60%
WL W & A Bates Limited: 3 patents #3 of 9Top 35%
CM Chrysler Motors: 2 patents #43 of 274Top 20%
📍 Cedar Rapids, IA: #74 of 1,358 inventorsTop 6%
🗺 Iowa: #518 of 15,303 inventorsTop 4%
Overall (All Time): #193,439 of 4,157,543Top 5%
22
Patents All Time

Issued Patents All Time

Showing 1–22 of 22 patents

Patent #TitleCo-InventorsDate
D997036 Gear pack cover 2023-08-29
D745315 Hand dough mixer Virginia B Perkins 2015-12-15
5525001 Clamping and fastening apparatus 1996-06-11
5380036 Vehicle rear suspension system Bruce T. Siekkinen, Frederick J. Winsor 1995-01-10
5228717 Wheel support bracket formed from sheet metal 1993-07-20
5192390 Mandrel means 1993-03-09
5145204 Stamped wheel support bracket for vehicle suspension 1992-09-08
5098768 Flexible reinforced polymeric material and a method of forming such a material Eric Holroyd 1992-03-24
5053098 Manufacture of flexible reinforced polymeric article Colin Holroyd 1991-10-01
5045376 Reinforced polymeric article Eric Holroyd 1991-09-03
4871409 Apparatus for laying a continuous strip of elastomeric material onto a surface 1989-10-03
4869773 Cord guide device 1989-09-26
4790974 Method for manufacturing a vehicle cross-beam rear axle Louis Long 1988-12-13
4783230 Manufacture of ply fabric for reinforced rubber articles 1988-11-08
4779498 Device for cutting reinforced elastomeric plies 1988-10-25
4637628 Anti-roll torsion bar arrangement for vehicle rear suspension 1987-01-20
4533157 Rear offset axle suspension system for vehicle Walter A. Hoenle, James L. Schenten 1985-08-06
4409059 Reinforced structures Eric Holroyd 1983-10-11
4401493 Reinforced structures George K. Bailey, Eric Holroyd, Anthony R. Wright 1983-08-30
4399187 Reinforced articles Eric Holroyd 1983-08-16
4392607 Carton with integral closures 1983-07-12
4359182 Carton with removable top 1982-11-16