Individual holder
ARMSTRONG RICHARD J
CA·4 granted patents·84 citations·filing 1982–1988
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
4 records- 0183US4852418ANutating driveARMSTRONG RICHARD J·Filed 1987·Granted Aug 1, 1989·45 cites·7 claims
- 0266US4483659AAxial flow impellerARMSTRONG RICHARD J·Filed 1983·Granted Nov 20, 1984·33 cites·17 claims
- 0337US4408630ATorch for vaporizable pressurized liquidARMSTRONG RICHARD J·Filed 1982·Granted Oct 11, 1983·4 cites·6 claims
- 0429US4928576ACompressed gas motorARMSTRONG RICHARD J·Filed 1988·Granted May 29, 1990·2 cites·16 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →