DH

Douglas J. Harvey

General Motors: 9 patents #1,725 of 18,328Top 10%
📍 Sterling Heights, MI: #143 of 1,485 inventorsTop 10%
🗺 Michigan: #10,567 of 86,293 inventorsTop 15%
Overall (All Time): #593,194 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
4711288 Halide treatment for aluminum lost foam casting process 1987-12-08
4374904 Tin-base body solder 1983-02-22
4362576 Method of making tin-base body solder and product 1982-12-07
4358884 Tin-base body solder Neal E. O'Connor, Joseph J. Bronson 1982-11-16
4342343 Method of making a negative lead-acid storage battery plate Robert Edward Clague, Richard Hammar 1982-08-03
4286362 Lightweight laminated grid for lead acid-storage batteries Richard Hammar 1981-09-01
4248905 Tin-base body solder 1981-02-03
4224068 Method of making distributor rotor electrode containing dielectric bodies for suppressing radio frequency interference 1980-09-23
4221854 Lightweight laminated grid for lead-acid storage batteries Richard Hammar 1980-09-09