Inventor · disambiguated record
Gunter Helling
Also filed as: HELLING GUENTER · HELLING GUNTER · PETER BERGTHALLER
62 granted patents·3 pending applications·472 citations·filing 1977–2008
99Inventor score
Top patents by PatentIndex Score
65 records- 0189US6558887B2Color photographic silver halide materialAGFA GEVAERT·Filed 2002·Granted May 6, 2003·12 cites·13 claims
- 0289US4388403AProcess for the preparation of dispersions of hydrophobic substances in waterAGFA GEVAERT AG·Filed 1981·Granted Jun 14, 1983·25 cites·7 claims
- 0387US6534254B1Color photographic print materialAGFA GEVAERT·Filed 2002·Granted Mar 18, 2003·12 cites·8 claims
- 0487US4714671AColor photographic recording material containing a polymeric gelatine plasticizerAGFA GEVAERT AG·Filed 1986·Granted Dec 22, 1987·19 cites·7 claims
- 0585US8476369B2Metal salt nanogel-containing polymersHELLING GUENTER·Filed 2008·Granted Jul 2, 2013·9 cites·26 claims
- 0685US6102997AInk jet systemAGFA GEVAERT NV·Filed 1998·Granted Aug 15, 2000·42 cites·22 claims
- 0784US5674668APhotographic recording materialAGFA GEVAERT·Filed 1996·Granted Oct 7, 1997·13 cites·6 claims
- 0882US4943519ALight sensitive, stabilized photographic recording materialAGFA GEVAERT AG·Filed 1986·Granted Jul 24, 1990·18 cites·2 claims
- 0981US5935773AColour photographic silver halide materialAGFA GEVAERT AG·Filed 1996·Granted Aug 10, 1999·10 cites·11 claims
- 1073US6242169B1Color photographic materialAGFA GEVAERT·Filed 1999·Granted Jun 5, 2001·7 cites·13 claims
- 1173US4353972ALight-sensitive photographic material comprising polymeric mordant layerAGFA GEVAERT AG·Filed 1980·Granted Oct 12, 1982·13 cites·6 claims
- 1273US4284708APhotographic film unit for the production of colored transfer imagesAGFA GEVAERT AG·Filed 1980·Granted Aug 18, 1981·13 cites·4 claims
- 1372US4513080APhotographic silver halide containing recording material with crosslinked microgel particlesAGFA GEVAERT AG·Filed 1984·Granted Apr 23, 1985·12 cites·2 claims
- 1471US5441861AColor photographic silver halide materialAGFA GEVAERT AB·Filed 1993·Granted Aug 15, 1995·9 cites·14 claims
- 1570US6045988AColor photographic recording materialAGFA GEVAERT NV·Filed 1998·Granted Apr 4, 2000·6 cites·12 claims
- 1670US5731138AColor photographic materialAGFA GEVAERT AG·Filed 1996·Granted Mar 24, 1998·6 cites·14 claims
- 1770US4724197AColor photographic recording material and a process for the production of color photographic imagesAGFA GEVAERT AG·Filed 1986·Granted Feb 9, 1988·10 cites·8 claims
- 1870US4585724AImage receptor layer comprising polyvinyl imidazole and cationic polymerAGFA GEVAERT AG·Filed 1984·Granted Apr 29, 1986·11 cites·3 claims
- 1970US4353980AProcess for the production of protective layers for photographic materialsAGFA GEVAERT AG·Filed 1980·Granted Oct 12, 1982·25 cites·9 claims
- 2070US4138260APhotographic film unit with crosslinked neutralization layerAGFA GEVAERT AG·Filed 1977·Granted Feb 6, 1979·9 cites·4 claims
- 2168US4379838APhotosensitive photographic recording material comprising a dyed layerAGFA GEVAERT AG·Filed 1981·Granted Apr 12, 1983·16 cites·5 claims
- 2266US5085981APhotographic silver halide element with protective layerAGFA GEVAERT AG·Filed 1990·Granted Feb 4, 1992·7 cites·6 claims
- 2366US4921782AMagenta coupler monomer, a polymeric magenta coupler and a color photographic recording material containing the polymeric magenta couplerAGFA GEVAERT AG·Filed 1988·Granted May 1, 1990·7 cites·3 claims
- 2464US5441862AColor photographic recording materialAGFA GEVAERT AG·Filed 1994·Granted Aug 15, 1995·6 cites·11 claims
- 2563US4840885AColor photographic recording material for the dye diffusion transfer processAGFA GEVAERT AG·Filed 1988·Granted Jun 20, 1989·8 cites·7 claims
- 2663US4459130ASolid 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
- 2761US6689552B2Color photographic silver halide materialAGFA GEVAERT·Filed 2001·Granted Feb 10, 2004·2 cites·11 claims
- 2861US5472838AProcess for the production of a silver halide emulsionAGFA GEVAERT AG·Filed 1994·Granted Dec 5, 1995·5 cites·8 claims
- 2961US5441855AColor photographic recording materialAGFA GEVAERT AG·Filed 1994·Granted Aug 15, 1995·5 cites·6 claims
- 3060US6207283B1PolymerAGFA GEVAERT·Filed 1998·Granted Mar 27, 2001·4 cites·9 claims
- 3159US6383728B2Color photographic silver halide materialAGFA GEVAERT·Filed 2000·Granted May 7, 2002·1 cites·12 claims
- 3259US4294920APhotographic silver halide emulsionAGFA GEVAERT AG·Filed 1980·Granted Oct 13, 1981·8 cites·6 claims
- 3356US5292610AMicrocapsules and their useAGFA GEVAERT AG·Filed 1992·Granted Mar 8, 1994·13 cites·11 claims
- 3455US4756998APolymeric couplers and light-sensitive photographic silver halide recording material containing such couplersAGFA GEVAERT AG·Filed 1986·Granted Jul 12, 1988·6 cites·8 claims
- 3554US6177177B1Ink jet recording material comprising an agent exhibiting a concentration gradient.AGFA N V·Filed 1998·Granted Jan 23, 2001·17 cites·20 claims
- 3652US4186014ALight sensitive photographic material containing a mordant layerAGFA GEVAERT AG·Filed 1977·Granted Jan 29, 1980·11 cites·2 claims
- 3749US5795707APhotographic silver halide materialAGFA GEVAERT·Filed 1997·Granted Aug 18, 1998·5 cites·11 claims
- 3849US4987061AHeat developable color photographic recording elementREEL FRAME AGFA GEVAERT AKTIEN·Filed 1989·Granted Jan 22, 1991·6 cites·4 claims
- 3947US6436623B1Color photographic silver halide materialAGFA GEVAERT·Filed 2001·Granted Aug 20, 2002·0 cites·6 claims
- 4046US4426438AAnionic copolymers containing polyvalent metal cations and their use in photographic materialsAGFA GEVAERT AG·Filed 1981·Granted Jan 17, 1984·4 cites·3 claims
- 4145US6313196B1Ink jet inkAGFA GEVAERT·Filed 1999·Granted Nov 6, 2001·9 cites·22 claims
- 4245US4939077APhotographic recording material containing polyester compounds having free acid groupsAGFA GEVAERT AG·Filed 1989·Granted Jul 3, 1990·9 cites·6 claims
- 4345US4284718APhotographic silver halide materials containing sulfur containing polymersAGFA GEVAERT AG·Filed 1980·Granted Aug 18, 1981·4 cites·6 claims
- 4444US2006134184A1At least partially degradable films containing an active ingredient and method for the production of composition comprising an active compoundAGFAPHOTO GMBH·Filed 2003·Application pending·0 cites
- 4542US5888719AColor photographic silver halide materialAGFA GEVAERT AG·Filed 1996·Granted Mar 30, 1999·1 cites·2 claims
- 4642US2005112513A1Colour photographic copying materialAGFA GEVAERT·Filed 2004·Application pending·0 cites
- 4741US6080536AMethod of preparing (100) tabular grains rich in silver bromideAGFA GEVAERT NV·Filed 1999·Granted Jun 27, 2000·1 cites·8 claims
- 4841US4939079APhotographic recording materialAGFA GEVAERT AG·Filed 1989·Granted Jul 3, 1990·3 cites·6 claims
- 4941US2004147631A1Ink for an ink jetFiled 2002·Application pending·0 cites
- 5040US6221572B1Color photographic materialAGFA GEVAERT AG·Filed 1998·Granted Apr 24, 2001·1 cites·14 claims
Showing the top 50 of 65 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Gunter Helling files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →