Inventor
Richard S. Leemhuis
Inventor
Rochester Hills, MI, US
Overview
Patents· 14 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G05Bprimary
G05BControl or regulating systems in general33%
F04BPositive-displacement machines for liquids14%
F02BInternal-combustion piston engines10%
G05DSystems for controlling or regulating non-electric variables10%
Y02TClimate change mitigation technologies related to transportation10%
Y10TTechnical subjects covered by former us classification10%
B60HArrangements of heating, cooling, ventilating or other air-treating devices specially adapted for passenger or goods spaces of vehicles5%
F02DControlling combustion engines5%
F04CRotary-piston, or oscillating-piston, positive-displacement machines for liquids5%
PatentTitleYear
10,082,070High performance turbo-hydraulic compressor20189,080,503'Hydraulic turbo accelerator apparatus'20156,743,005'Gerotor apparatus with balance grooves'20046,691,925'Heater/defroster for an automobile'20045,634,776'Low noise hydraulic pump with check valve timing device'19975,135,031'Power transmission'19925,073,091'Power transmission'19915,023,535'High resolution pulse width modulation'19914,811,561'Power transmission'19894,774,651'Power transmission'19884,757,747'Power transmission'19884,744,218'Power transmission'19884,714,005'Power transmission'19874,651,272'Power transmission'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987–1992Patents assigned to VICKERS INC (8)· patent assignee history
1987–1988Based in Troy, MI, US· patent location history
1988–2015Patents assigned to LEEMHUIS RICHARD S (2)· patent assignee history
1989–2018Based in Rochester Hills, MI, US· patent location history
2004Patents assigned to VALEO ELECTRICAL SYS INC (2)· patent assignee history
2015–2018Patents assigned to HYDRACHARGE LLC (2)· patent assignee history
2015Patents assigned to BUSCHUR JEFFREY J (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| VICKERS INC | 8 | 1987–1992 |
| HYDRACHARGE LLC | 2 | 2015–2018 |
| LEEMHUIS RICHARD Sself | 2 | 1988–2015 |
| VALEO ELECTRICAL SYS INC | 2 | 2004 |
| BUSCHUR JEFFREY J | 1 | 2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Rochester Hills, MI, US | 9 | 1989–2018 |
| Troy, MI, US | 5 | 1987–1988 |