P C U K Produits Chimiques Ugine Kuhlmann
52Patents
0Active
52Granted
35Portfolio score
Filing activity: Feb 28, 1977 → Jan 25, 1988
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4366299A | Copolymers containing fluorine and their use for the water-repellent and oil-repellent treatment of various substrates | Emerging Cross-Sectional Technologies | 40 | Expired |
| US4366300A | Composition and process for the protection of materials against spots or stains | Chemistry; Metallurgy | 27 | Expired |
| US4314979A | Industrial process for continuous production of zeolite A | Emerging Cross-Sectional Technologies | 26 | Expired |
| US4423254A | Superacid catalyzed preparation of resorcinol from meta-isopropylphenol | Chemistry; Metallurgy | 23 | Expired |
| US4983769A | Perfluoroalkylamine oxides and use of these products in fire extinguishing compositions | Emerging Cross-Sectional Technologies | 23 | Expired |
| US4605798A | Continuous process for the gaseous-phase preparation of trichlorotrifluoroethane, dichlorotetrafluoroethane and monochloropentafluoroethane in controlled proportions | Chemistry; Metallurgy | 19 | Expired |
| US4381261A | Structurally colored cross-linkable compounds, their preparation and their utilization in coating compositions | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4613723A | Process for effecting hydrocarbon isomerization or alkylation | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4439534A | Catalyst of chromium oxide microspheres and process for its preparation | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4336032A | Process for stabilizing mixtures of gasoline and methanol | Chemistry; Metallurgy | 12 | Expired |
| US4314907A | Oil additive compositions for internal combustion engines | Chemistry; Metallurgy | 11 | Expired |
| US4379092A | Process for the preparation of anthraquinone and its substituted derivatives | Chemistry; Metallurgy | 9 | Expired |
| US4423192A | Lubricated thermoplastic compositions of polyvinylidene fluoride | Chemistry; Metallurgy | 9 | Expired |
| US4299775A | Process for the preparation of 3-cyano-3,5,5-trimethylcyclohexanone | Chemistry; Metallurgy | 9 | Expired |
| US4288646A | Regioselective preparation of .beta.-isopropylnaphthalene over superacidic solid or supported perfluorinated sulfonic acid catalysts | Chemistry; Metallurgy | 8 | Expired |
| US4474895A | Catalysts for gaseous phase fluorination of aliphatic chlorinated and chlorofluorinated hydrocarbons | Performing Operations; Transporting | 7 | Expired |
| US4362873A | Process for the preparation of basic oxazine dyestuffs | Chemistry; Metallurgy | 7 | Expired |
| US4338260A | Preparation of percarboxylic acids | Chemistry; Metallurgy | 6 | Expired |
| US4339614A | Superacid catalyzed preparation of resorcinol from meta-isopropylphenol | Chemistry; Metallurgy | 5 | Expired |
| US4339613A | Superacid catalyzed preparation of resorcinol from meta-diisopropylbenzene | Chemistry; Metallurgy | 5 | Expired |
| US4415461A | Process for treating residual waters containing aromatic amines | Chemistry; Metallurgy | 5 | Expired |
| US4330323A | Dichloroacetamide and trichloroacetamide derivatives which are antidotes against herbicides | Human Necessities | 4 | Expired |
| US4354948A | Lubricating varnishes having a graphite fluoride base and method of preparing same | Chemistry; Metallurgy | 4 | Expired |
| US4337344A | Process for the preparation of dibenzothiazyl disulfide | Chemistry; Metallurgy | 4 | Expired |
| US4547604A | Selective isopropylation of cumene to meta-diisopropylbenzene | Chemistry; Metallurgy | 4 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.