Inventor · disambiguated record
Waldo De Thomas
Also filed as: DE THOMAS WALDO · DE THOMAS WALDO R
18 granted patents·436 citations·filing 1976–1994
95Inventor score
Top patents by PatentIndex Score
18 records- 0198US4153578ACatalyst comprising Raney nickel with adsorbed molybdenum compoundGAF CORP·Filed 1978·Granted May 8, 1979·93 cites·9 claims
- 0292US5510307AFree radical initiator delivery systemISP INVESTMENTS INC·Filed 1994·Granted Apr 23, 1996·74 cites·11 claims
- 0390US4182721ACatalytic hydrogenation of carbonyl containing organic compoundsGAF CORP·Filed 1978·Granted Jan 8, 1980·25 cites·9 claims
- 0483US4105674AProduction of gamma-butyrolactone from maleic anhydride with a hydrogenation catalystGAF CORP·Filed 1977·Granted Aug 8, 1978·27 cites·9 claims
- 0582US4083809AHydrogenation catalyst and method of producing sameGAF CORP·Filed 1976·Granted Apr 11, 1978·26 cites·3 claims
- 0677US5149836AProcess for the production of gamma butyrolactone THF in predetermined amountsISP INVESTMENTS INC·Filed 1991·Granted Sep 22, 1992·23 cites·4 claims
- 0776US4885410AHydrogenation catalystGAF CORP·Filed 1988·Granted Dec 5, 1989·29 cites·7 claims
- 0876US4361495ARegeneration of supported-nickel catalystsGAF CORP·Filed 1981·Granted Nov 30, 1982·12 cites·7 claims
- 0973US5347021AProcess of vapor phase catalytic hydrogenation of maleic anhydride to gamma-butyrolactone in high conversion and high selectivity using an activated catalystISP INVESTMENTS INC·Filed 1991·Granted Sep 13, 1994·35 cites·15 claims
- 1070US5122495AActivated catalyst for the vapor phase hydrogenation of maleic anhydride to gamma-butyrolactone in high conversion and high selectivityISP INVESTMENTS INC·Filed 1991·Granted Jun 16, 1992·30 cites·9 claims
- 1166US4885411AHydrogenation process for converting lactones to diolsGAF CORP·Filed 1988·Granted Dec 5, 1989·19 cites·15 claims
- 1264US4851085APurification of butyrolactoneGAF CORP·Filed 1988·Granted Jul 25, 1989·6 cites·11 claims
- 1363US4797382AHydrogenation catalyst and process for preparing the catalystGAF CORP·Filed 1987·Granted Jan 10, 1989·17 cites·7 claims
- 1456US4795733AHydrogenation catalyst and process for its preparationGAF CORP·Filed 1987·Granted Jan 3, 1989·13 cites·13 claims
- 1546US5405818AFree radical initiator delivery systemISP INVESTMENTS INC·Filed 1993·Granted Apr 11, 1995·6 cites·22 claims
- 1643US4276215APurification of pyrrolidoneGAF CORP·Filed 1977·Granted Jun 30, 1981·1 cites·8 claims
- 1730US5362698AFree radical initiator delivery systemISP INVESTMENTS INC·Filed 1993·Granted Nov 8, 1994·0 cites·25 claims
- 1826US5136058AProcess for the recovery of purified gamma-butyrolactone in high yield from its crude reactor effluentISP INVESTMENTS INC·Filed 1991·Granted Aug 4, 1992·0 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →