Individual holder
HOFMANN HELMUT J
4 granted patents·331 citations·filing 1977–1987
Individually held — no corporate assignee on record.
Technology mixE04H4
Top patents by PatentIndex Score
4 records- 0196US4351077ACleaning apparatus for submerged surfacesHOFMANN HELMUT J·Filed 1980·Granted Sep 28, 1982·115 cites·5 claims
- 0294US4208752ACleaning apparatus for submerged surfacesHOFMANN HELMUT J·Filed 1978·Granted Jun 24, 1980·85 cites·5 claims
- 0394US4133068ACleaning apparatus for submerged surfacesHOFMANN HELMUT J·Filed 1977·Granted Jan 9, 1979·79 cites·6 claims
- 0484US4761848ASuction-operated automatic swimming pool cleanerHOFMANN HELMUT J·Filed 1987·Granted Aug 9, 1988·52 cites·6 claims
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