Individual holder
MAYER JAMES R
US·4 granted patents·134 citations·filing 1983–1986
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
4 records- 0185US4761120AWell pumping unit and control systemMAYER JAMES R·Filed 1986·Granted Aug 2, 1988·65 cites·32 claims
- 0270US4477232AHydraulically actuated reciprocating piston pumpMAYER JAMES R·Filed 1983·Granted Oct 16, 1984·22 cites·22 claims
- 0368US4828048AHydraulic Percussion toolMAYER JAMES R·Filed 1986·Granted May 9, 1989·41 cites·18 claims
- 0439US4552180APilot operated control valve for hydraulically actuated reciprocating pumpMAYER JAMES R·Filed 1984·Granted Nov 12, 1985·6 cites·6 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →