Assignee
FREUDENBERG CARL FA
DE·631 granted patents·2 pending applications·16,482 citations·filing 1974–2004
Top patents by PatentIndex Score
633 records- 0198US4320201AMethod for making collagen sponge for medical and cosmetic usesFREUDENBERG CARL FA·Filed 1980·Granted Mar 16, 1982·238 cites·10 claims
- 0297US4142334AScouring and cleaning clothFREUDENBERG CARL FA·Filed 1977·Granted Mar 6, 1979·120 cites·8 claims
- 0396US5617815ARegulating valveFREUDENBERG CARL FA·Filed 1995·Granted Apr 8, 1997·116 cites·1 claims
- 0496US5529026ARegulating ValveFREUDENBERG CARL FA·Filed 1995·Granted Jun 25, 1996·100 cites·1 claims
- 0596US4363845ASpun non-woven fabrics with high dimensional stability, and processes for their productionFREUDENBERG CARL FA·Filed 1981·Granted Dec 14, 1982·72 cites·19 claims
- 0696US4277072ASeal 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
- 0795US5713577ASealing arrangement having multiple ring completely covered by elastomeric sealing materialFREUDENBERG CARL FA·Filed 1996·Granted Feb 3, 1998·79 cites·6 claims
- 0895US4822548AMethod and apparatus for manufacturing a thread-reinforced rubber hoseFREUDENBERG CARL FA·Filed 1987·Granted Apr 18, 1989·138 cites·6 claims
- 0994US5893392ARegulating valveFREUDENBERG CARL FA·Filed 1996·Granted Apr 13, 1999·78 cites·8 claims
- 1094US5501531ACardan shaft bearingFREUDENBERG CARL FA·Filed 1994·Granted Mar 26, 1996·65 cites·24 claims
- 1194US4525411ACleaning clothFREUDENBERG CARL FA·Filed 1984·Granted Jun 25, 1985·81 cites·16 claims
- 1294US4172599APressure-balanced packingFREUDENBERG CARL FA·Filed 1977·Granted Oct 30, 1979·49 cites·11 claims
- 1394US4080185AComposite filter set for gas flow ductsFREUDENBERG CARL FA·Filed 1976·Granted Mar 21, 1978·92 cites·1 claims
- 1493US5509667ARadial lip seal for a shaft in a housingFREUDENBERG CARL FA·Filed 1993·Granted Apr 23, 1996·73 cites·13 claims
- 1593US5224903AChain wheel having a shrink ring made of a polymer materialFREUDENBERG CARL FA·Filed 1992·Granted Jul 6, 1993·77 cites·12 claims
- 1693US4478620AAir filterFREUDENBERG CARL FA·Filed 1982·Granted Oct 23, 1984·49 cites·6 claims
- 1793US4434204ASpun-bonded fabric of partially drawn polypropylene with a low draping coefficientFREUDENBERG CARL FA·Filed 1982·Granted Feb 28, 1984·128 cites·6 claims
- 1893US4420526ASound absorbing irregularly shaped panelFREUDENBERG CARL FA·Filed 1981·Granted Dec 13, 1983·70 cites·10 claims
- 1993US4399347ADevice for attachment to motor vehicle windows to prevent fogging or icingFREUDENBERG CARL FA·Filed 1981·Granted Aug 16, 1983·76 cites·11 claims
- 2093US4154885ANonwoven fabric of good draping qualities and method of manufacturing sameFREUDENBERG CARL FA·Filed 1977·Granted May 15, 1979·48 cites·9 claims
- 2192US6573204B1Cleaning clothFREUDENBERG CARL FA·Filed 2000·Granted Jun 3, 2003·121 cites·27 claims
- 2292US6338492B1Sealing system for large-surface thin partsFREUDENBERG CARL FA·Filed 2000·Granted Jan 15, 2002·85 cites·14 claims
- 2392USD438355SCleaning clothFREUDENBERG CARL FA·Filed 1999·Granted Feb 27, 2001·37 cites·1 claims
- 2492US5970583ANonwoven lap formed of very fine continuous filamentsFREUDENBERG CARL FA·Filed 1999·Granted Oct 26, 1999·145 cites·7 claims
- 2592US5370404ARadial lip seal with interposed bearingFREUDENBERG CARL FA·Filed 1993·Granted Dec 6, 1994·69 cites·9 claims
- 2692US4639390APreparation of non-woven fabric containing polyvinyl alcohol fiberFREUDENBERG CARL FA·Filed 1985·Granted Jan 27, 1987·108 cites·18 claims
- 2792US3938813APositive-contact sealFREUDENBERG CARL FA·Filed 1974·Granted Feb 17, 1976·53 cites·24 claims
- 2891US6547860B2Process for manufacture of triboelectrically charged nonwovensFREUDENBERG CARL FA·Filed 2001·Granted Apr 15, 2003·58 cites·15 claims
- 2991US6448462B2Medical bandaging materialFREUDENBERG CARL FA·Filed 2001·Granted Sep 10, 2002·93 cites·17 claims
- 3091US6402870B1Process of making multi-segmented filamentsFREUDENBERG CARL FA·Filed 2000·Granted Jun 11, 2002·46 cites·13 claims
- 3191US5899785ANonwoven lap formed of very fine continuous filamentsFREUDENBERG CARL FA·Filed 1997·Granted May 4, 1999·135 cites·21 claims
- 3291US5503366AElectromagnetically actuated valveFREUDENBERG CARL FA·Filed 1994·Granted Apr 2, 1996·67 cites·16 claims
- 3391US5377962ARotational vibration damperFREUDENBERG CARL FA·Filed 1993·Granted Jan 3, 1995·57 cites·26 claims
- 3491US5364191APivot bearingFREUDENBERG CARL FA·Filed 1993·Granted Nov 15, 1994·59 cites·10 claims
- 3591US4773634AHydraulically damped elastic motor unitFREUDENBERG CARL FA·Filed 1987·Granted Sep 27, 1988·56 cites·9 claims
- 3691US4559243AAbsorbent planar structure and method of its manufactureFREUDENBERG CARL FA·Filed 1982·Granted Dec 17, 1985·65 cites·15 claims
- 3791US4185011AProcess for the production of collagen fibersFREUDENBERG CARL FA·Filed 1978·Granted Jan 22, 1980·34 cites·8 claims
- 3891US4082878AAbsorbent textile sheet materialFREUDENBERG CARL FA·Filed 1976·Granted Apr 4, 1978·69 cites·7 claims
- 3991US4082160ASilencer for exhausting gas streamsFREUDENBERG CARL FA·Filed 1976·Granted Apr 4, 1978·51 cites·12 claims
- 4090US6706652B2Cleaning clothFREUDENBERG CARL FA·Filed 2001·Granted Mar 16, 2004·56 cites·20 claims
- 4190US6520507B2Sealing sleeve, especially for small-dimension installation spacesFREUDENBERG CARL FA·Filed 2001·Granted Feb 18, 2003·52 cites·17 claims
- 4290US5725927ACleaning clothFREUDENBERG CARL FA·Filed 1996·Granted Mar 10, 1998·159 cites·17 claims
- 4390US4432557ACassette sealFREUDENBERG CARL FA·Filed 1982·Granted Feb 21, 1984·63 cites·9 claims
- 4490US4422779AHydraulic bearing supportFREUDENBERG CARL FA·Filed 1981·Granted Dec 27, 1983·52 cites·10 claims
- 4589US6474653B1Seal arrangementFREUDENBERG CARL FA·Filed 2000·Granted Nov 5, 2002·41 cites·20 claims
- 4689US6398895B1Structure textile material made of at least two base nonwoven fabrics and method for its manufactureFREUDENBERG CARL FA·Filed 2001·Granted Jun 4, 2002·52 cites·4 claims
- 4789US6087279ATextile material for cleaning applicationsFREUDENBERG CARL FA·Filed 1998·Granted Jul 11, 2000·83 cites·65 claims
- 4889US5958097AFilter insertFREUDENBERG CARL FA·Filed 1998·Granted Sep 28, 1999·65 cites·6 claims
- 4989US4490425AFused and needled nonwoven interlining fabricFREUDENBERG CARL FA·Filed 1983·Granted Dec 25, 1984·55 cites·9 claims
- 5089US4451315AProcess for producing a non-woven fabricFREUDENBERG CARL FA·Filed 1982·Granted May 29, 1984·36 cites·18 claims
Showing the top 50 of 633 patent records by PatentIndex Score.
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