Inventor · disambiguated record
Erwin Ranz
Also filed as: LOHMANN JOACHIM W · RANZ ERWIN · VETTER HANS
28 granted patents·205 citations·filing 1972–1987
96Inventor score
Files withAGFA GEVAERT AG28
Top patents by PatentIndex Score
28 records- 0186US4052213ALight-sensitive photographic materialAGFA GEVAERT AG·Filed 1976·Granted Oct 4, 1977·17 cites·7 claims
- 0282US4119464AProcess for hardening photographic layers containing gelatineAGFA GEVAERT AG·Filed 1977·Granted Oct 10, 1978·16 cites·12 claims
- 0378US4186011AColor photographic recording materialAGFA GEVAERT AG·Filed 1977·Granted Jan 29, 1980·14 cites·4 claims
- 0478US4171223ALight-sensitive color photographic materialAGFA GEVAERT AG·Filed 1978·Granted Oct 16, 1979·9 cites·2 claims
- 0573US4267264AColor photographic recording materialAGFA GEVAERT AG·Filed 1980·Granted May 12, 1981·14 cites·4 claims
- 0672US4348474ALight sensitive photographic recording material and the use thereof for the production of photographic imagesAGFA GEVAERT AG·Filed 1981·Granted Sep 7, 1982·13 cites·9 claims
- 0770US4088491ALight sensitive photographic materialAGFA GEVAERT AG·Filed 1976·Granted May 9, 1978·8 cites·7 claims
- 0867US4003748AIncorporation processAGFA GEVAERT AG·Filed 1975·Granted Jan 18, 1977·8 cites·8 claims
- 0966US4770980AMultilayer color photographic recording material wherein a red secondary sensitivity is produced in the blue and green layersAGFA GEVAERT AG·Filed 1987·Granted Sep 13, 1988·9 cites·7 claims
- 1064US4036646AColor correction of unwanted side densities in light-sensitive color photographic elementsAGFA GEVAERT AG·Filed 1975·Granted Jul 19, 1977·8 cites·5 claims
- 1161US4365012ALight sensitive recording materialAGFA GEVAERT AG·Filed 1981·Granted Dec 21, 1982·18 cites·3 claims
- 1260US4250252ALight-sensitive color photographic materialAGFA GEVAERT AG·Filed 1975·Granted Feb 10, 1981·5 cites·5 claims
- 1359US4043818AProcess for hardening photographic layers with carbodiimide compounds containing sulphobetaine groupsAGFA GEVAERT AG·Filed 1975·Granted Aug 23, 1977·7 cites·9 claims
- 1457US4183752ALight-sensitive photographic materialAGFA GEVAERT AG·Filed 1978·Granted Jan 15, 1980·6 cites·8 claims
- 1556US4369248APhotographic recording material and its use for the production of imagesAGFA GEVAERT AG·Filed 1981·Granted Jan 18, 1983·7 cites·10 claims
- 1652US4315070AColor-photographic recording material containing a highly reactive dir-couplerAGFA GEVAERT AG·Filed 1980·Granted Feb 9, 1982·6 cites·3 claims
- 1749US4418142ALight-sensitive photographic silver halide recording materialAGFA GEVAERT AG·Filed 1981·Granted Nov 29, 1983·5 cites·5 claims
- 1848US4173479AColor photographic recording materialAGFA GEVAERT AG·Filed 1978·Granted Nov 6, 1979·4 cites·3 claims
- 1946US4368259AColor photographic recording material containing an emulsified, hydrophilic color-forming compoundAGFA GEVAERT AG·Filed 1981·Granted Jan 11, 1983·4 cites·6 claims
- 2046US4023970ALight-sensitive color photographic material with masking layer comprising spontaneously silver halideAGFA GEVAERT AG·Filed 1975·Granted May 17, 1977·4 cites·9 claims
- 2144US4186012ALight sensitive color photographic material containing development inhibitor releasing couplerAGFA GEVAERT AG·Filed 1978·Granted Jan 29, 1980·3 cites·3 claims
- 2243US3941595APhotographic material containing fogged, direct positive silver halide emulsion and negative silver halide emulsion for the production of equidensitiesAGFA GEVAERT AG·Filed 1972·Granted Mar 2, 1976·5 cites·10 claims
- 2342US4046574AColor photographic material with homophthalimide thioether development inhibitorAGFA GEVAERT AG·Filed 1976·Granted Sep 6, 1977·7 cites·6 claims
- 2439US4301243APhotographic recording materialAGFA GEVAERT AG·Filed 1979·Granted Nov 17, 1981·1 cites·4 claims
- 2535US4106940ALight-sensitive material containing emulsified substancesAGFA GEVAERT AG·Filed 1975·Granted Aug 15, 1978·2 cites·3 claims
- 2633US4576907AColor-photographic recording materialAGFA GEVAERT AG·Filed 1984·Granted Mar 18, 1986·1 cites·10 claims
- 2733US4571378AColor photographic recording material and development processAGFA GEVAERT AG·Filed 1984·Granted Feb 18, 1986·4 cites·7 claims
- 2831US4174969ALight sensitive photographic materialAGFA GEVAERT AG·Filed 1977·Granted Nov 20, 1979·0 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →