Inventor · disambiguated record
Stephen R. Foster
Also filed as: FOSTER STEPHEN · FOSTER STEPHEN R · FOSTER STEPHEN RICHARD
13 granted patents·2 pending applications·294 citations·filing 1977–2007
93Inventor score
Top patents by PatentIndex Score
15 records- 0189US4225110AActuator for converting linear to rotary motionBAKER GAC INC·Filed 1978·Granted Sep 30, 1980·54 cites·15 claims
- 0281US6151356AMethod and apparatus for phase detection in digital signalsNORTEL NETWORKS LTD·Filed 1998·Granted Nov 21, 2000·52 cites·15 claims
- 0379US4445424AActuator having Belleville washer configuration operating in concert with a piston cylinder memberBAKER CAC·Filed 1981·Granted May 1, 1984·32 cites·1 claims
- 0479US4135547AQuick disengaging valve actuatorBAKER INT CORP·Filed 1977·Granted Jan 23, 1979·43 cites·28 claims
- 0578US4523516AActuator having Belleville washer configuration operating in concert with a piston cylinder memberBAKER CAC·Filed 1984·Granted Jun 18, 1985·32 cites·1 claims
- 0668US4325535AActuator mechanism for a rotary valve or the likeBAKER CAC·Filed 1980·Granted Apr 20, 1982·21 cites·1 claims
- 0754US4160463AFlow line monitor pilot valve assemblyBAKER CAC·Filed 1977·Granted Jul 10, 1979·12 cites·21 claims
- 0845US7331344B2Breathing deviceELECTRO MEDICAL EQUIPMENT LTD·Filed 2003·Granted Feb 19, 2008·10 cites·14 claims
- 0945US5620400AMountain climbing exercise apparatusFiled 1996·Granted Apr 15, 1997·18 cites·8 claims
- 1043US2007144517A1Breathing deviceE M E LTD·Filed 2007·Application pending·0 cites
- 1142US4349175AValve actuator having a continuously charged accumulatorBAKER CAC·Filed 1980·Granted Sep 14, 1982·9 cites·3 claims
- 1240US2009190125A1Device and Method for Spectrometric SystemFOSTER STEPHEN·Filed 2007·Application pending·0 cites
- 1333US4889049AWringer deviceFOSTER STEPHEN R·Filed 1988·Granted Dec 26, 1989·8 cites·12 claims
- 1430US4279272AFlow line monitor pilot valve assemblyBAKER CAC·Filed 1979·Granted Jul 21, 1981·1 cites·2 claims
- 1523US4920877AWringer deviceFOSTER STEPHEN R·Filed 1989·Granted May 1, 1990·2 cites·10 claims
Join the waitlist — get patent alerts
Get an alert when Stephen R. Foster files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →