Assignee
HOFFMAN ALLAN C
US·8 granted patents·474 citations·filing 1975–1990
Top patents by PatentIndex Score
8 records- 0197US4524805ANormally closed duckbill valve and method of manufactureHOFFMAN ALLAN C·Filed 1983·Granted Jun 25, 1985·249 cites·6 claims
- 0291US4240630AGame ball check valveHOFFMAN ALLAN C·Filed 1978·Granted Dec 23, 1980·47 cites·5 claims
- 0385US4853056AMethod of making tennis ball with a single core and cover bonding cureHOFFMAN ALLAN C·Filed 1988·Granted Aug 1, 1989·82 cites·4 claims
- 0476US4428478ASelf-limiting pumpHOFFMAN ALLAN C·Filed 1982·Granted Jan 31, 1984·47 cites·11 claims
- 0564US4765853AMethod of making a pressurized ballHOFFMAN ALLAN C·Filed 1987·Granted Aug 23, 1988·20 cites·14 claims
- 0657US4327912ATennis ballHOFFMAN ALLAN C·Filed 1980·Granted May 4, 1982·14 cites·10 claims
- 0736US5062912AMethod and apparatus for fabricating a seamless hollow rubber core for a ballHOFFMAN ALLAN C·Filed 1990·Granted Nov 5, 1991·7 cites·15 claims
- 0834US4012041AGame ball repressurizing methodHOFFMAN ALLAN C·Filed 1975·Granted Mar 15, 1977·8 cites·1 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →