Inventor · disambiguated record
Hans Langen
Also filed as: LANGEN HANS · LANGEN HANS J · LANGEN HANS-JUERGEN · LANGEN HANS-JURGEN DR
53 granted patents·560 citations·filing 1974–2001
98Inventor score
Files withAGFA GEVAERT AG23WALTERSCHEID GMBH JEAN8WALTERSCHEID GMBH GKN7KERNFORSCHUNGSANLAGE JUELICH5AGFA GEVAERT3
Top patents by PatentIndex Score
53 records- 0190US4944354AThree-point coupling deviceWALTERSCHEID GMBH JEAN·Filed 1989·Granted Jul 31, 1990·48 cites·12 claims
- 0290US4749643APhotographic recording element containing a UV absorbent and a silver halide emulsion layerAGFA GEVAERT AG·Filed 1986·Granted Jun 7, 1988·75 cites·3 claims
- 0390US4218159AMultiple-part hobbing cutterSACK GMBH·Filed 1979·Granted Aug 19, 1980·45 cites·14 claims
- 0489US6451520B1Color photographic silver halide materialAGFA GEVAERT·Filed 2001·Granted Sep 17, 2002·12 cites·9 claims
- 0587US5702877AColor photographic silver halide materialAGFA GEVAERT AG·Filed 1996·Granted Dec 30, 1997·16 cites·14 claims
- 0682US4943519ALight sensitive, stabilized photographic recording materialAGFA GEVAERT AG·Filed 1986·Granted Jul 24, 1990·18 cites·2 claims
- 0777US5776667AColor photographic recording material having a yellow filter layer which contains an arylidene dye of isoxazolone as the yellow filter dyeAGFA AG·Filed 1997·Granted Jul 7, 1998·9 cites·20 claims
- 0875US4236299AMethod and device for winding spiral fins onto oval tubingBALCKE DUERR AG·Filed 1978·Granted Dec 2, 1980·16 cites·16 claims
- 0974US5462303ASide strut for a lower steering arm of a tractorWALTERSCHEID GMBH GKN·Filed 1994·Granted Oct 31, 1995·29 cites·4 claims
- 1073US5981160AColor photographic silver halide materialAGFA GEVAERT AG·Filed 1998·Granted Nov 9, 1999·7 cites·10 claims
- 1170US4963465AColor photographic negative recording materialAGFA GEVAERT AG·Filed 1989·Granted Oct 16, 1990·10 cites·5 claims
- 1267US5075207AColor photographic recording material containing new colored cyan couplersAGFA GEVAERT AG·Filed 1991·Granted Dec 24, 1991·8 cites·2 claims
- 1367US4003748AIncorporation processAGFA GEVAERT AG·Filed 1975·Granted Jan 18, 1977·8 cites·8 claims
- 1463US5366043ALubricating device for two plunging profiles slidable inside one another, especially of a propeller shaftWALTERSCHEID GMBH GKN·Filed 1993·Granted Nov 22, 1994·22 cites·10 claims
- 1563US5108883AColor photographic recording materialAGFA GEVAERT AG·Filed 1990·Granted Apr 28, 1992·7 cites·3 claims
- 1663US4459130ASolid preparation of water-soluble acid dye and polymer particles with quaternary ammonium or phosphonium groupsAGFA GEVAERT AG·Filed 1983·Granted Jul 10, 1984·9 cites·2 claims
- 1763US4414309APhotographic recording material containing an aldehyde removerAGFA GEVAERT AG·Filed 1982·Granted Nov 8, 1983·9 cites·5 claims
- 1861US4193953AHydrosol droplet casting process for production of nuclear fuel and breeder material granulesKERNFORSCHUNGSANLAGE JUELICH·Filed 1978·Granted Mar 18, 1980·12 cites·3 claims
- 1959US6013428AColor photographic recording material having a 2-equivalent magenta coupler and a white couplerAGFA GEVAERT AG·Filed 1997·Granted Jan 11, 2000·7 cites·10 claims
- 2057US4430030AOperating process for the formation of a steady particle stream of particles conveyed within a flow conduit by a flow medium and arrangement for effectuation of the processKERNFORSCHUNGSANLAGE JUELICH·Filed 1980·Granted Feb 7, 1984·13 cites·3 claims
- 2156US6102804ALubricating device for lubricating the profiled tubes of a telescopic shaftWALTERSCHEID GMBH GKN·Filed 1998·Granted Aug 15, 2000·15 cites·7 claims
- 2255US4756998APolymeric couplers and light-sensitive photographic silver halide recording material containing such couplersAGFA GEVAERT AG·Filed 1986·Granted Jul 12, 1988·6 cites·8 claims
- 2354US5718634ATorque limiting couplingWALTERSCHEID GMBH GKN·Filed 1995·Granted Feb 17, 1998·17 cites·12 claims
- 2454US4953411AAngular bevel gear drive for agricultural implementsWALTERSCHEID GMBH JEAN·Filed 1989·Granted Sep 4, 1990·15 cites·7 claims
- 2552US4224258AMethod and apparatus for producing spherical particles of uniform size of nuclear fuels or breeder materialsKERNFORSCHUNGSANLAGE JUELICH·Filed 1978·Granted Sep 23, 1980·10 cites·8 claims
- 2651US5042588ALifting strut for a tractorWALTERSCHEID GMBH JEAN·Filed 1990·Granted Aug 27, 1991·15 cites·18 claims
- 2750US5538474ADriveshaft length adjusting mechanism with two profilesWALTERSCHEID GMBH GKN·Filed 1994·Granted Jul 23, 1996·14 cites·7 claims
- 2849US4710454APhotographic recording material and a process for the production of photographic imagesLANGEN HANS·Filed 1986·Granted Dec 1, 1987·6 cites·8 claims
- 2949US4418142ALight-sensitive photographic silver halide recording materialAGFA GEVAERT AG·Filed 1981·Granted Nov 29, 1983·5 cites·5 claims
- 3048US5454759ASealing assembly for a universal jointWALTERSCHEID GMBH GKN·Filed 1993·Granted Oct 3, 1995·10 cites·12 claims
- 3148US5076407ADisconnectable couplingWALTERSCHEID GMBH JEAN·Filed 1990·Granted Dec 31, 1991·10 cites·9 claims
- 3246US4368259AColor photographic recording material containing an emulsified, hydrophilic color-forming compoundAGFA GEVAERT AG·Filed 1981·Granted Jan 11, 1983·4 cites·6 claims
- 3345US5601968AColor photographic silver halide materialAGFA GEVAERT AG·Filed 1996·Granted Feb 11, 1997·2 cites·9 claims
- 3444US4107832AMethod for winding spiral fins onto oval tubingBALCKE DUERR AG·Filed 1975·Granted Aug 22, 1978·5 cites·6 claims
- 3541US4939079APhotographic recording materialAGFA GEVAERT AG·Filed 1989·Granted Jul 3, 1990·3 cites·6 claims
- 3641US4738919APhotosensitive photographic silver halide recording materialAGFA GEVAERT AG·Filed 1986·Granted Apr 19, 1988·4 cites·5 claims
- 3740US5241058AAzo dye salts useful as masking couplers and preparation thereofAGFA GEVAERT AG·Filed 1991·Granted Aug 31, 1993·2 cites·4 claims
- 3840US5030942AProcess and device for measuring and indicating load conditions in drivelines of agricultural implementsWALTERSCHEID GMBH JEAN·Filed 1990·Granted Jul 9, 1991·8 cites·10 claims
- 3935US4366221APhotographic recording material and new merocyaninesAGFA GEVAERT AG·Filed 1981·Granted Dec 28, 1982·1 cites·9 claims
- 4035US4106940ALight-sensitive material containing emulsified substancesAGFA GEVAERT AG·Filed 1975·Granted Aug 15, 1978·2 cites·3 claims
- 4134US5408887ADrive unit for driving agricultural implements or for effecting the drive in agricultural implementsWALTERSCHEID GMBH GKN·Filed 1993·Granted Apr 25, 1995·6 cites·3 claims
- 4234US5263734ACoupling device for attaching towable implements to a tractorWALTERSCHEID GMBH JEAN·Filed 1992·Granted Nov 23, 1993·4 cites·19 claims
- 4334US5046990AFixed guard for rotating jointsWALTERSCHEID GMBH JEAN·Filed 1990·Granted Sep 10, 1991·4 cites·4 claims
- 4433US4576907AColor-photographic recording materialAGFA GEVAERT AG·Filed 1984·Granted Mar 18, 1986·1 cites·10 claims
- 4532US6297385B1Acetanilide couplersAGFA GEVAERT·Filed 1999·Granted Oct 2, 2001·0 cites·11 claims
- 4632US5270496ATension barWALTERSCHEID GMBH JEAN·Filed 1992·Granted Dec 14, 1993·3 cites·9 claims
- 4732US4617255AColor coupler-containing photographic materialAGFA GEVAERT AG·Filed 1985·Granted Oct 14, 1986·0 cites·2 claims
- 4830US6057085AColor photographic recording materialAGFA GEVAERT NV·Filed 1998·Granted May 2, 2000·0 cites·11 claims
- 4930US4035450ADevice for making ball-shaped metal oxide particles and metal carbide particlesKERNFORSCHUNGSANLAGE JUELICH·Filed 1974·Granted Jul 12, 1977·2 cites·4 claims
- 5029US5341675AAssembly for identifying the direction of power in the case of torque transmissionKAEMPF KLAUS·Filed 1992·Granted Aug 30, 1994·5 cites·17 claims
Showing the top 50 of 53 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →