Inventor · disambiguated record
Pierre Le Perchec
Also filed as: LE PERCHEC PIERRE · PERCHEC PIERRE LE
14 granted patents·237 citations·filing 1983–2000
93Inventor score
Top patents by PatentIndex Score
14 records- 0188US5879445AThinners for aqueous suspensions of mineral particles and hydraulic binder pastesCHRYSO SA·Filed 1993·Granted Mar 9, 1999·67 cites·20 claims
- 0287US5460714ALiquid phase catalytic hydrocarbon hydroconversion with polyaromatic additiveINST FRANCAIS DU PETROLE·Filed 1993·Granted Oct 24, 1995·68 cites·13 claims
- 0368US6646103B1Method for obtaining oxacarbonyl polymers, functionalization, resulting polymers and functionalizing agentCENTRE NAT RECH SCIENT·Filed 2000·Granted Nov 11, 2003·13 cites·23 claims
- 0468US4704229ASurface-active compounds of the sulfobetaines family, their manufacture and use, particularly for enhanced oil recoveryINST FRANCAIS DU PETROLE·Filed 1985·Granted Nov 3, 1987·9 cites·20 claims
- 0566US6410671B1Zwitterion derivative and application to aqueous suspension propertiesINST FRANCAIS DU PETROLE·Filed 1999·Granted Jun 25, 2002·25 cites·13 claims
- 0662US4596680AProcess for manufacturing aryl ethers having different substituents on the two aromatic ringsINST FRANCAIS DU PETROLE·Filed 1983·Granted Jun 24, 1986·6 cites·12 claims
- 0752US5817716AResins with a primary amine or guanidine functionELF AQUITAINE·Filed 1997·Granted Oct 6, 1998·8 cites·5 claims
- 0852US5629452AProcess for the preparation of polyoxyalkylated aminesCHRYSO·Filed 1993·Granted May 13, 1997·5 cites·29 claims
- 0947US5350701AProcess for producing a surface gate of an integrated electro-chemical sensor, consisting of a field-effect transistor sensitive to alkaline-earth species and sensor obtainedLYON ECOLE CENTRALE·Filed 1991·Granted Sep 27, 1994·19 cites·10 claims
- 1046US5348923ASilica-based substrates modified by grafting of polyalkylguanidinium groups, their process of manufacture and their use as catalystsPOUDRES & EXPLOSIFS STE NALE·Filed 1992·Granted Sep 20, 1994·3 cites·14 claims
- 1143US5726253AProcess for the preparation of resins with a primary amine or guanidine function, and resins thus obtainedELF AQUITAINE·Filed 1996·Granted Mar 10, 1998·5 cites·5 claims
- 1240US5632884AAsphalt compositions, method of preparation, and useTOTAL RAFFINAGE DISTRIBUTION·Filed 1994·Granted May 27, 1997·5 cites·19 claims
- 1332US4869804AProcess for the thermal conversion of heavy petroleum fractions and refining residues, in the presence of oxygen compounds of sulfur and nitrogen and compositions containing these compoundsINST FRANCAIS DU PETROLE·Filed 1987·Granted Sep 26, 1989·4 cites·19 claims
- 1428US5973080AProcess for the preparation of resins with a primary amine or guanidine function, and resins thus obtainedELF AQUITAINE·Filed 1998·Granted Oct 26, 1999·0 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →