Inventor · disambiguated record
Friedrich W. Krock
Also filed as: KROCK FRIEDRICH WILHELM · KROECK FRIEDRICH W · KROECK FRIEDRICH WILHELM
20 granted patents·267 citations·filing 1974–1995
94Inventor score
Files withBAYER AG20
Top patents by PatentIndex Score
20 records- 0196US5007942ALight-polarizing films or sheets containing stilbene dyestuffsBAYER AG·Filed 1989·Granted Apr 16, 1991·67 cites·6 claims
- 0286US5621027ADyestuffs for bulk dyeing plasticsBAYER AG·Filed 1995·Granted Apr 15, 1997·27 cites·10 claims
- 0386US5272259AStilbene dyestuffs and light-polarizing films or sheets containing stilbeneBAYER AG·Filed 1992·Granted Dec 21, 1993·59 cites·6 claims
- 0482US4596666AAryl-mercapto anthraquinone dyestuffs, their preparation and use and dichroic material containing aryl-mercapto anthraquinone dyestuffsBAYER AG·Filed 1983·Granted Jun 24, 1986·15 cites·16 claims
- 0580US4863634AAnthraquinone dyestuffsBAYER AG·Filed 1984·Granted Sep 5, 1989·13 cites·5 claims
- 0674US4294769AProcess for the preparation of 1,4-diamino-2,3-dicyano-anthraquinonesBAYER AG·Filed 1980·Granted Oct 13, 1981·11 cites·10 claims
- 0770US5093401AAqueous casting solutions for the production of light-polarizing sheets or films based on polyvinyl alcoholBAYER AG·Filed 1989·Granted Mar 3, 1992·17 cites·10 claims
- 0861US4689171AAnthraquinone dyestuffs, their preparation and use and dichroic material containing these anthraquinone dyestuffsBAYER AG·Filed 1985·Granted Aug 25, 1987·17 cites·13 claims
- 0959US5213582ALight-polarizing films or foils containing triphendioxazine or triphendithiazine dyes with good dichrditic propertiesBAYER AG·Filed 1992·Granted May 25, 1993·11 cites·5 claims
- 1055US4422973AProcess for the preparation of 1,4-diamino-2,3-dicyano-anthraquinoneBAYER AG·Filed 1981·Granted Dec 27, 1983·4 cites·10 claims
- 1149US5122557ALight polarizing films or foils and dyes for their productionBAYER AG·Filed 1991·Granted Jun 16, 1992·7 cites·8 claims
- 1245US5175336AFluoromethylated polycyanobenzenes, their alkali metal cyanide adducts, processes for their preparation and use of the fluoromethylated polycyanobenzenesBAYER AG·Filed 1991·Granted Dec 29, 1992·3 cites·5 claims
- 1343US4521341AProcess for the preparation of 1,4-diamino-anthraquinone-2-sulphonic acidBAYER AG·Filed 1984·Granted Jun 4, 1985·3 cites·8 claims
- 1443US4278434ATransfer printing process and printing inks and temporary supports for carrying out this processBAYER AG·Filed 1980·Granted Jul 14, 1981·4 cites·10 claims
- 1534US5286420AProduction of light polarizing filmsBAYER AG·Filed 1992·Granted Feb 15, 1994·8 cites·3 claims
- 1634US4264511AAnthraquinone compoundsBAYER AG·Filed 1979·Granted Apr 28, 1981·0 cites·12 claims
- 1733US4294578AColorantsBAYER AG·Filed 1979·Granted Oct 13, 1981·0 cites·4 claims
- 1833US4035398AAnthraquinone dyestuffsBAYER AG·Filed 1975·Granted Jul 12, 1977·0 cites·10 claims
- 1932US3957822AAnthraquinone dyestuffsBAYER AG·Filed 1974·Granted May 18, 1976·0 cites·7 claims
- 2030US4017524AAnthraquinone dyestuffsBAYER AG·Filed 1975·Granted Apr 12, 1977·1 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →