Inventor · disambiguated record
Francis M. Simpson
Also filed as: SIMPSON FRANCIS M · SIMPSON FRANCIS M JR
6 granted patents·423 citations·filing 1978–1996
88Inventor score
Top patents by PatentIndex Score
6 records- 0196US5607288AScroll machine with reverse rotation protectionCOPELAND CORP·Filed 1994·Granted Mar 4, 1997·123 cites·18 claims
- 0292US5803716AScroll machine with reverse rotation protectionCOPELAND CORP·Filed 1996·Granted Sep 8, 1998·69 cites·8 claims
- 0392US4174098AShock absorber and mounting means thereforACE CONTROLS·Filed 1978·Granted Nov 13, 1979·120 cites·14 claims
- 0490US5591014AScroll machine with reverse rotation protectionCOPELAND CORP·Filed 1993·Granted Jan 7, 1997·58 cites·68 claims
- 0575US5320507AScroll machine with reverse rotation protectionCOPELAND CORP·Filed 1992·Granted Jun 14, 1994·31 cites·31 claims
- 0668US4469126ADischarge valve assembly for refrigeration compressorsCOPELAND CORP·Filed 1981·Granted Sep 4, 1984·22 cites·10 claims
Join the waitlist — get patent alerts
Get an alert when Francis M. Simpson 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 →