HH

Harold H. Hopkinson

CA Carrier: 2 patents #900 of 2,507Top 40%
ZA Zf Friedrichshafen Ag: 2 patents #870 of 2,695Top 35%
YF Young & Franklin: 1 patents #4 of 10Top 40%
📍 Farmington Hills, MI: #421 of 2,032 inventorsTop 25%
🗺 Michigan: #18,390 of 86,293 inventorsTop 25%
Overall (All Time): #986,955 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
10036733 Hardness verification utilizing ultrasonic velocities Wally Lawrence, Eric Holmes, Joel Lautermilch, Tracy HOLMES 2018-07-31
9387534 Control arm and a method for forming the same Eric Holmes, Barbara J. Jones 2016-07-12
4989642 Throttling valve Dave L. Perry, Caldwell Jones, John D. Moeller, Gabriel Silva 1991-02-05
4620423 Expansion devices for a multizone heat pump system Eiichi Iiyama 1986-11-04
4487031 Method and apparatus for controlling compressor capacity Richard D. Rogers 1984-12-11