Individual holder
HILLBERG ROBERT L
4 granted patents·59 citations·filing 1981–1982
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
4 records- 0173US4400900AMulti-barrel handgun firing mechanismHILLBERG ROBERT L·Filed 1981·Granted Aug 30, 1983·28 cites·11 claims
- 0264US4407085AHandgun firing mechanismHILLBERG ROBERT L·Filed 1981·Granted Oct 4, 1983·21 cites·13 claims
- 0339US4472901APistol grip assemblyHILLBERG ROBERT L·Filed 1981·Granted Sep 25, 1984·7 cites·15 claims
- 0431US4392320ATrigger retaining and stabilizing meansHILLBERG ROBERT L·Filed 1982·Granted Jul 12, 1983·3 cites·11 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →