Inventor · disambiguated record
Hans Forch
Also filed as: FORCH HANS
14 granted patents·488 citations·filing 1974–1993
95Inventor score
Top patents by PatentIndex Score
14 records- 0196US4277072ASeal for the gap between a revolving shaft and the bore of a housing against a mixture of a liquid and a gasFREUDENBERG CARL FA·Filed 1979·Granted Jul 7, 1981·75 cites·17 claims
- 0294US4172599APressure-balanced packingFREUDENBERG CARL FA·Filed 1977·Granted Oct 30, 1979·49 cites·11 claims
- 0392US3938813APositive-contact sealFREUDENBERG CARL FA·Filed 1974·Granted Feb 17, 1976·53 cites·24 claims
- 0488US4709930AShaft and sealing ringFREUDENBERG CARL FA·Filed 1985·Granted Dec 1, 1987·49 cites·6 claims
- 0588US4428587ASeal ring with channel for radially accelerating medium to be sealedFREUDENBERG CARL FA·Filed 1983·Granted Jan 31, 1984·40 cites·20 claims
- 0685US4304414APressure-balanced packingFREUDENBERG CARL FA·Filed 1979·Granted Dec 8, 1981·31 cites·5 claims
- 0777US3973779ASealing arrangementBURGMANN DICHTUNGSWERK FEODOR·Filed 1974·Granted Aug 10, 1976·34 cites·28 claims
- 0876US4546985ALip seal with channeled and non-channeled portionsFREUDENBERG CARL FA·Filed 1984·Granted Oct 15, 1985·28 cites·20 claims
- 0975US4695063ARadial shaft seal ring with backfeed ribs and damming ribsFREUDENBERG CARL FA·Filed 1985·Granted Sep 22, 1987·31 cites·6 claims
- 1068US4240643AAnnular sealFREUDENBERG CARL FA·Filed 1978·Granted Dec 23, 1980·23 cites·6 claims
- 1165US5018749ASlide ring sealFREUDENBERG CARL FA·Filed 1989·Granted May 28, 1991·25 cites·6 claims
- 1255US4202555ASealing ringFREUDENBERG CARL FA·Filed 1979·Granted May 13, 1980·14 cites·11 claims
- 1354US5332234ASealing arrangementFREUDENBERG CARL FA·Filed 1993·Granted Jul 26, 1994·22 cites·10 claims
- 1452US4194748ARadial shaft sealing ringFREUDENBERG CARL FA·Filed 1978·Granted Mar 25, 1980·14 cites·16 claims
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