Elf France
Patent Owner
Stats
- 2 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- May 12, 1998 most recent publication
Details
- 2 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 1,536 Total Citation Count
- Jun 29, 1977 Earliest Filing
- 109 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
Rank in Class
Top Patents (by citation)
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Recent Publications
- No Recent Publications to Display
Recent Patents
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
5750598 Bitumen/polymer composition vulcanizable at temperatures below 100.degree.CExpiredMar 06, 95May 12, 98[C08L]
5433755 Additive formulation for fuels incorporating ester function products and a detergent-dispersantExpiredAug 31, 92Jul 18, 95[C10L]
5294333 Hydrorefining process employing a niobium trisulfide-containing catalystExpiredMay 14, 92Mar 15, 94[C10G]
5269954 Nitrogenous additives with an antioxidant action and lubricating compositions containing the said additivesExpiredNov 25, 91Dec 14, 93[C10M, C07D]
5248648 Hydrorefining catalyst containing sulphides of ruthenium and of at least one other metal on a refractoryExpiredJun 25, 92Sep 28, 93[B01J, C10G]
5234476 Polynitrogen compound having two terminal cycles of the imide type, their preparations and usesExpiredJul 30, 92Aug 10, 93[C10L]
5156231 Suspension-corrective device designed especially for a motorcycleExpiredJun 24, 91Oct 20, 92[B62K]
5156414 System for controlling the geometry of a vehicle wheelExpiredDec 06, 90Oct 20, 92[B62D, G01B]
5157009 Catalyst for hydrorefining hydrocarbon feedstocks containing niobium trisulphideExpiredApr 18, 91Oct 20, 92[B01J, C10G]
5133887 Process for the synthesis of greases permitting a good control of their mechanical behaviour and greases thus obtainedExpiredNov 29, 89Jul 28, 92[C10M]
5112937 Polymers derived from unsaturated polyesters by addition of compounds with a thiol function and their use as additives modifying the properties of petroleum middle distillates when coldExpiredMay 10, 91May 12, 92[C08G]
5106515 Polymers derived from unsaturated polyesters by addition of compounds with an amine function and their use as additives modifying the properties of petroleum middle distillates when coldExpiredNov 27, 90Apr 21, 92[C09K, B01F]
5104842 Catalytic composition comprising titanium and phosphorous, its preparation and its use for condensing an epoxide on a carboxylic acid anhydrideExpiredOct 16, 90Apr 14, 92[B01J]
5098587 Process for the preparation of an overalkalinized additive containing a derivative of boron, the additive thus obtained and lubricant compositions containing said additiveExpiredJun 29, 90Mar 24, 92[C10M]
5096684 Process for the synthesis of precursors of molecular sieves of the silicoaluminophosphate type, precursors obtained and their application to obtaining the said molecular sievesExpiredMar 30, 90Mar 17, 92[C01B]
5062977 Sulphur-containing additives to lubricants with antiwear and extreme-pressure effect and the processes for their preparation and compositions containing the said additivesExpiredMay 14, 90Nov 05, 91[C10M]
5053056 Hydroxyimidazolines and polyamine fuel additive compositionsExpiredJun 29, 89Oct 01, 91[C10L]
5041231 Process for preparing an additive for lubricating oils, the additive thus obtained and a lubricating composition containing the additiveExpiredMay 09, 89Aug 20, 91[C10M]
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