Inventor · disambiguated record
Alfred Brack
Also filed as: BRACK ALFRED
27 granted patents·128 citations·filing 1972–1995
95Inventor score
Files withBAYER AG27
Top patents by PatentIndex Score
27 records- 0197US3971807ACationic dyestuffsBAYER AG·Filed 1974·Granted Jul 27, 1976·57 cites·7 claims
- 0278US3959310ACationic dyestuffsBAYER AG·Filed 1973·Granted May 25, 1976·10 cites·9 claims
- 0371US4695633AChromogenic 4,4-diaryl-dihydroquinazolones, their preparation and their useBAYER AG·Filed 1985·Granted Sep 22, 1987·16 cites·4 claims
- 0458US3992405ACationic dyestuffsBAYER AG·Filed 1972·Granted Nov 16, 1976·4 cites·10 claims
- 0557US4754034AChromogenic 4,4-diaryldihydroquinazolonesBAYER AG·Filed 1985·Granted Jun 28, 1988·7 cites·4 claims
- 0656US4234488ABenz-[c,d]-indolyl compoundsBAYER AG·Filed 1978·Granted Nov 18, 1980·4 cites·10 claims
- 0751US3980651AWater-insoluble barbituric acid-substituted naphthalactam dyestuffBAYER AG·Filed 1974·Granted Sep 14, 1976·3 cites·9 claims
- 0849US4220780ACationic dyestuffsBAYER AG·Filed 1978·Granted Sep 2, 1980·3 cites·6 claims
- 0948US4080331ATransfer printing processBAYER AG·Filed 1974·Granted Mar 21, 1978·2 cites·5 claims
- 1048US3975150ATransfer printing processBAYER AG·Filed 1974·Granted Aug 17, 1976·2 cites·1 claims
- 1147US5578711AProcess for the preparation of dyestuffsBAYER AG·Filed 1995·Granted Nov 26, 1996·3 cites·10 claims
- 1247US4968797AChromogenic 4,4-diaryldihydroquinazolonesBAYER AG·Filed 1987·Granted Nov 6, 1990·2 cites·3 claims
- 1344US4022799ANaphtholactam dyestuffsBAYER AG·Filed 1975·Granted May 10, 1977·2 cites·6 claims
- 1443US4001253ANaphtholactam dyestuffsBAYER AG·Filed 1975·Granted Jan 4, 1977·2 cites·6 claims
- 1541US4446326ACationic naphtholactam dyestuffsBAYER AG·Filed 1981·Granted May 1, 1984·2 cites·4 claims
- 1641US4147865ABenz-(C,D)-indolyl compoundsBAYER AG·Filed 1978·Granted Apr 3, 1979·2 cites·3 claims
- 1740US5328993ACationic triazatrimethine dyestuffsBAYER AG·Filed 1993·Granted Jul 12, 1994·2 cites·12 claims
- 1837US5541299AProcess for the preparation of dyestuffsBAYER AG·Filed 1994·Granted Jul 30, 1996·1 cites·15 claims
- 1937US5502171AProcess for the preparation of dyestuffsBAYER AG·Filed 1995·Granted Mar 26, 1996·1 cites·12 claims
- 2037US4283540AProcess for the preparation of cationic naphtholactam dyestuffsBAYER AG·Filed 1978·Granted Aug 11, 1981·1 cites·6 claims
- 2137US4000130ACationic dyestuffsBAYER AG·Filed 1974·Granted Dec 28, 1976·1 cites·7 claims
- 2232US4840641ACationic diazacyanine dyestuffs for dyeing polyacrylonitrile-wool blendsBAYER AG·Filed 1988·Granted Jun 20, 1989·0 cites·5 claims
- 2332US4017484ACationic dyestuffsBAYER AG·Filed 1975·Granted Apr 12, 1977·0 cites·3 claims
- 2431US4396768AProcess for the preparation of anionic quinophthalone dyestuffsBAYER AG·Filed 1981·Granted Aug 2, 1983·0 cites·2 claims
- 2530US4310664AProcess for the preparation of pyridine-4-aldehyde phenylhydrazonesBAYER AG·Filed 1980·Granted Jan 12, 1982·0 cites·5 claims
- 2630US4203722ATransfer printing process with naphtholactam dyesBAYER AG·Filed 1978·Granted May 20, 1980·1 cites·10 claims
- 2730US3950347ANaphtholactam dyestuffsBAYER AG·Filed 1973·Granted Apr 13, 1976·0 cites·8 claims
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