Assignee
ELF UNION
US·19 granted patents·646 citations·filing 1976–1980
Top patents by PatentIndex Score
19 records- 0196US4145322AProcess for preparing bitumen-polymer compositionsELF UNION·Filed 1977·Granted Mar 20, 1979·148 cites·18 claims
- 0295US4242246AProcess for the preparation of bituminous compositions making use of a mother solution containing polymers and sulfurELF UNION·Filed 1979·Granted Dec 30, 1980·107 cites·12 claims
- 0393US4104320AMethod of dehydrocyclizing aliphatic hydrocarbonsELF UNION·Filed 1976·Granted Aug 1, 1978·179 cites·25 claims
- 0487US4233186ACatalysts for water dealkylation of aromatic hydrocarbonsELF UNION·Filed 1979·Granted Nov 11, 1980·25 cites·13 claims
- 0584US4154710AMethod of preparing novel bitumen compositionsELF UNION·Filed 1977·Granted May 15, 1979·34 cites·10 claims
- 0677US4201193ASolar energy absorbing roofELF UNION·Filed 1978·Granted May 6, 1980·42 cites·4 claims
- 0764US4191702APreparation of alkyl or aralkyl thiosulfatesELF UNION·Filed 1978·Granted Mar 4, 1980·8 cites·14 claims
- 0863US4238451AProcess and device to measure the asphaltene content of petroleum productsELF UNION·Filed 1979·Granted Dec 9, 1980·22 cites·4 claims
- 0961US4221259AProcess for storing caloriesELF UNION·Filed 1979·Granted Sep 9, 1980·18 cites·7 claims
- 1060US4096908AHeating and cooling enclosure for a gas chromatographic columnELF UNION·Filed 1976·Granted Jun 27, 1978·23 cites·7 claims
- 1152US4237052AMethod for the preparation of bitumens modified by polymersELF UNION·Filed 1979·Granted Dec 2, 1980·11 cites·12 claims
- 1251US4242143AProcess for improving the properties of bituminous products and an improved cast asphaltELF UNION·Filed 1978·Granted Dec 30, 1980·11 cites·8 claims
- 1340US4165631AInstrument for the continuous measurement of viscosity, especially of bitumensELF UNION·Filed 1978·Granted Aug 28, 1979·11 cites·12 claims
- 1433US4311614ACatalysts for water dealkylation of aromatic hydrocarbonsELF UNION·Filed 1980·Granted Jan 19, 1982·1 cites·14 claims
- 1533US4238368AWater dealkylation catalyst of aromatic hydrocarbonsELF UNION·Filed 1978·Granted Dec 9, 1980·3 cites·14 claims
- 1631US4182296AApparatus permitting an improvement of the carburetion of internal combustion enginesELF UNION·Filed 1977·Granted Jan 8, 1980·1 cites·8 claims
- 1729US4206037ACatalytic treatment of gas oilsELF UNION·Filed 1978·Granted Jun 3, 1980·0 cites·7 claims
- 1829US4206044ACatalytic process for hydro-treating gas oils in the presence of hydrogenELF UNION·Filed 1978·Granted Jun 3, 1980·0 cites·8 claims
- 1929US4164490ABitumen compositions containing polymersELF UNION·Filed 1977·Granted Aug 14, 1979·2 cites·9 claims
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