Inventor · disambiguated record
Heinrich Kowarsch
Also filed as: KOWARSCH HEINRICH
9 granted patents·16 citations·filing 1982–2008
82Inventor score
Top patents by PatentIndex Score
9 records- 0158US4785114AQuinophthalone dyesBASF AG·Filed 1986·Granted Nov 15, 1988·5 cites·3 claims
- 0248US5554774APreparation of chlorinated violanthrones or isoviolanthronesBASF AG·Filed 1995·Granted Sep 10, 1996·4 cites·7 claims
- 0341US4940492AColorant mixtures containing isoquinoline derivatives, use thereof in printing inks, and novel isoquinoline derivativesBASF AG·Filed 1988·Granted Jul 10, 1990·2 cites·10 claims
- 0441US4491544ADyes having a diazo component and an isoquinoline coupling componentBASF AG·Filed 1982·Granted Jan 1, 1985·2 cites·3 claims
- 0538US4751314APreparation of tetrachloro-3-iminoisoindolin-1-oneBASF AG·Filed 1986·Granted Jun 14, 1988·1 cites·17 claims
- 0637US10287435B2Preparation of Pigment Red 149KOWARSCH HEINRICH·Filed 2008·Granted May 14, 2019·0 cites·14 claims
- 0737US4563519AAnthraquinone azopyrazalone colorantsBASF AG·Filed 1983·Granted Jan 7, 1986·1 cites·17 claims
- 0836US4861898AIsoindoline metal complexesBASF AG·Filed 1987·Granted Aug 29, 1989·1 cites·14 claims
- 0928US4897478APreparation of haloisatoic anhydridesBASF AG·Filed 1988·Granted Jan 30, 1990·0 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →