Assignee
CONCENTRIC PUMPS LTD
GB·19 granted patents·370 citations·filing 1981–2000
Top patents by PatentIndex Score
19 records- 0192US4540347AGerotor pumpCONCENTRIC PUMPS LTD·Filed 1985·Granted Sep 10, 1985·54 cites·2 claims
- 0289US5195882AGerotor pump having spiral lobesCONCENTRIC PUMPS LTD·Filed 1992·Granted Mar 23, 1993·58 cites·10 claims
- 0386US4986739AGerotor pump having axial fluid transfer passages through the lobesCONCENTRIC PUMPS LTD·Filed 1989·Granted Jan 22, 1991·39 cites·10 claims
- 0485US4395809AManufacture of vibration dampersCONCENTRIC PUMPS LTD·Filed 1981·Granted Aug 2, 1983·42 cites·3 claims
- 0574US6402461B1PumpsCONCENTRIC PUMPS LTD·Filed 2000·Granted Jun 11, 2002·41 cites·22 claims
- 0661US5782083ADrive systemsCONCENTRIC PUMPS LTD·Filed 1996·Granted Jul 21, 1998·21 cites·6 claims
- 0754US5226787ACoolant pump for an internal combustion engineCONCENTRIC PUMPS LTD·Filed 1991·Granted Jul 13, 1993·21 cites·4 claims
- 0853US5152264AInternal combustion engine oil pump with coverCONCENTRIC PUMPS LTD·Filed 1991·Granted Oct 6, 1992·17 cites·2 claims
- 0947US4944662AReversible geroter pump with pivoting carrier unidirectional flowCONCENTRIC PUMPS LTD·Filed 1989·Granted Jul 31, 1990·10 cites·5 claims
- 1046US5554019ACompact gerotor pumpCONCENTRIC PUMPS LTD·Filed 1993·Granted Sep 10, 1996·12 cites·11 claims
- 1145US5261803AGerotor pump with interference fit closureCONCENTRIC PUMPS LTD·Filed 1991·Granted Nov 16, 1993·12 cites·19 claims
- 1242US4887956AVariable output oil pumpCONCENTRIC PUMPS LTD·Filed 1988·Granted Dec 19, 1989·8 cites·2 claims
- 1341US4891876AMethod of making pump impeller by lost-foam moldingCONCENTRIC PUMPS LTD·Filed 1989·Granted Jan 9, 1990·8 cites·5 claims
- 1438US4718378ATransmission couplingCONCENTRIC PUMPS LTD·Filed 1986·Granted Jan 12, 1988·7 cites·2 claims
- 1536US5145347AGerotor pump with blind-end groove on each lobe of the annulusCONCENTRIC PUMPS LTD·Filed 1991·Granted Sep 8, 1992·5 cites·9 claims
- 1636US4588362AReversible unidirectional flow rotary pumpCONCENTRIC PUMPS LTD·Filed 1984·Granted May 13, 1986·5 cites·1 claims
- 1731US4778361AVariable output gerotor pumpCONCENTRIC PUMPS LTD·Filed 1987·Granted Oct 18, 1988·3 cites·3 claims
- 1829US5271723AEngine driven oil pumpCONCENTRIC PUMPS LTD·Filed 1992·Granted Dec 21, 1993·4 cites·4 claims
- 1925US5334002AGerotor pump with shiftable rotor bossCONCENTRIC PUMPS LTD·Filed 1993·Granted Aug 2, 1994·3 cites·9 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →