Inventor · disambiguated record
Roger T. Clark
Also filed as: CLARK ROGER · CLARK ROGER T
14 granted patents·172 citations·filing 1975–2005
92Inventor score
Files withPENNWALT CORP5ATOCHEM NORTH AMERICA ELF4ATOCHEM NORTH AMERICA1CELANESE CORP1CLARK ROGER T1
Top patents by PatentIndex Score
14 records- 0183US3972952AVapor-phase conversion of methanol and ethanol to higher linear primary alcohols by heterogeneous catalysisCELANESE CORP·Filed 1975·Granted Aug 3, 1976·33 cites·11 claims
- 0275US7430968B2Folding work platformCLARK ROGER T·Filed 2005·Granted Oct 7, 2008·16 cites·22 claims
- 0371US5442123AProcess for selectively preparing organic trisulfidesATOCHEM NORTH AMERICA ELF·Filed 1993·Granted Aug 15, 1995·12 cites·14 claims
- 0469US4454321APreparation of amines from olefins using certain transition metal catalystsPENNWALT CORP·Filed 1982·Granted Jun 12, 1984·7 cites·9 claims
- 0567US6106372ATungsten electrode sharpenerFiled 1999·Granted Aug 22, 2000·27 cites·23 claims
- 0667US4255357ACatalytic process for preparing ethyl aminesPENNWALT CORP·Filed 1980·Granted Mar 10, 1981·20 cites·3 claims
- 0758US5312992AProcess for removing sulfur from organic sulfidesATOCHEM NORTH AMERICA ELF·Filed 1991·Granted May 17, 1994·5 cites·18 claims
- 0858US5283369ASelective synthesis of mercaptans and catalyst thereforATOCHEM NORTH AMERICA ELF·Filed 1992·Granted Feb 1, 1994·17 cites·8 claims
- 0954US4400304ACatalyst pellets with resin binder for decomposition of hypochloritePENNWALT CORP·Filed 1980·Granted Aug 23, 1983·12 cites·3 claims
- 1053US4951337AMechanic's support pillowHULL HAROLD L·Filed 1988·Granted Aug 28, 1990·18 cites·4 claims
- 1147US5091593AProcess for removing sulfur from organic sulfidesATOCHEM NORTH AMERICA·Filed 1989·Granted Feb 25, 1992·3 cites·5 claims
- 1239US4683090APurification of organosulfonyl halidesPENNWALT CORP·Filed 1982·Granted Jul 28, 1987·1 cites·4 claims
- 1328US5405820AProcess for the preparation of an alumina trihyorate catalystATOCHEM NORTH AMERICA ELF·Filed 1993·Granted Apr 11, 1995·1 cites·12 claims
- 1428US4827031AProcess for preparing amines from olefins with ammonium halide catalystsPENNWALT CORP·Filed 1987·Granted May 2, 1989·0 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →