Inventor · disambiguated record
Otto Arndt
Also filed as: ARNDT OTTO · ARNDT OTTO G
23 granted patents·98 citations·filing 1976–1996
94Inventor score
Top patents by PatentIndex Score
23 records- 0172US5616779AProcess for the preparation of 2,5-di-phenylamino-terephthalic acid and its dialkyl estersHOECHST AG·Filed 1995·Granted Apr 1, 1997·13 cites·21 claims
- 0271US4613698AProcess for the preparation of 6-chloro-2,4-dinitroanilineHOECHST AG·Filed 1985·Granted Sep 23, 1986·10 cites·2 claims
- 0371US4246196ADiaminophenyl ureasHOECHST AG·Filed 1979·Granted Jan 20, 1981·8 cites·10 claims
- 0471USD257785SReceiver for a golf ball chipping gameARNDT OTTO G·Filed 1978·Granted Jan 6, 1981·13 cites·1 claims
- 0566US5208365AProcess for the preparation of 2,5-di(phenylamino)-terephthalic acid and its dialkyl esters in high purityHOECHST AG·Filed 1992·Granted May 4, 1993·10 cites·7 claims
- 0664US4658034AProcess for the preparation of 2,6-dichlorobenzoxazoleHOECHST AG·Filed 1985·Granted Apr 14, 1987·6 cites·4 claims
- 0760US5599992AProcess for the preparation of 2-fluorophenylhydrazineHOECHST AG·Filed 1996·Granted Feb 4, 1997·7 cites·19 claims
- 0855US5149850AProcess for the production of high-purity tetrachloro-1,4-benzoquinoneHOECHST AG·Filed 1991·Granted Sep 22, 1992·5 cites·4 claims
- 0952US4254054AProcess for the manufacture of 4-nitro-4'-amino-diphenylamine-2-sulfonic acid and 2-nitro-4'-amino-diphenylamine-4-sulfonic acidHOECHST AG·Filed 1979·Granted Mar 3, 1981·3 cites·10 claims
- 1052US4242275AProcess for the preparation of isomer-free toluene-4-sulfonic acidHOECHST AG·Filed 1979·Granted Dec 30, 1980·3 cites·25 claims
- 1151US5151532AProcess for the production of high-purity tetrachloro-1,4-benzoquinoneHOECHST AG·Filed 1991·Granted Sep 29, 1992·4 cites·8 claims
- 1250US4540832AProcess for the preparation of 6-chloro-2,4-dinitrophenolHOECHST AG·Filed 1984·Granted Sep 10, 1985·3 cites·8 claims
- 1347US4605767AProcess for the preparation of 2,6-dichloro-4-nitroanilineHOECHST AG·Filed 1985·Granted Aug 12, 1986·3 cites·8 claims
- 1447US4487725AProcess for the preparation of N-acetylaminoarylsulfonic acids in sulfuric acid as solventHOECHST AG·Filed 1983·Granted Dec 11, 1984·2 cites·5 claims
- 1544US5347038AProcess of the preparation of 2,5-di-phenylamino-terephthalic acid and its dialkyl esters in a high purityHOECHST AG·Filed 1993·Granted Sep 13, 1994·3 cites·11 claims
- 1640US5559257AProcess for the preparation of tetrachloro-1,4-benzoquinoneHOECHST AG·Filed 1995·Granted Sep 24, 1996·2 cites·19 claims
- 1740US4552970ASolvated salts of dinitrophenylcyanamides, and a process for the preparation thereofHOECHST AG·Filed 1984·Granted Nov 12, 1985·1 cites·3 claims
- 1838US4908478ASingle-vessel process for preparing 2-acetaminonaphthalene-6-sulfonic acid of high purityHOECHST AG·Filed 1988·Granted Mar 13, 1990·1 cites·3 claims
- 1934US4316861AN-Nitroaryl-N-halosulfonyl ureasHOECHST AG·Filed 1979·Granted Feb 23, 1982·0 cites·4 claims
- 2031US5451699AProcess for the preparation of crystalline, salt-free, chlorine-substituted 3-nitrobenzenesulfonic acid hydratesHOECHST AG·Filed 1994·Granted Sep 19, 1995·0 cites·17 claims
- 2131US4824962AProcess for the preparation of naphthostyrilHOECHST AG·Filed 1988·Granted Apr 25, 1989·0 cites·5 claims
- 2229US5525744AProcess for the preparation of tetrachloro-1,4-benzoquinoneHOECHST AG·Filed 1994·Granted Jun 11, 1996·0 cites·16 claims
- 2329USD249718SProjector for toy golf balls or the likeARNDT OTTO G·Filed 1976·Granted Sep 26, 1978·1 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →