HC

Harry Chafetz

Chevron: 21 patents #181 of 4,788Top 4%
Overall (All Time): #212,230 of 4,157,543Top 6%
21
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5445750 Lubricating oil composition containing the reaction product of an alkenylsuccinimide with a bis(hydroxyaromatic) substituted carboxylic acid Christopher S. Liu, Brian L. Papke, Thomas A. Kennedy 1995-08-29
5093513 Process for oxycarbonylation of lower alkanols Robert A. Sawicki 1992-03-03
4948524 Dispersant anti-oxidant VI improver and lubricating oil composition containing same Maria M. Kapuscinski, Theodore E. Nalesnik, Robert T. Biggs, Christopher S. Liu 1990-08-14
4900705 Novel ligand catalyst systems formed by reaction of carbonyl compounds with organosilicon compounds Robert A. Sawicki 1990-02-13
4689422 Novel ligand catalyst systems formed by reaction of carbonyl compounds with organosilicon compounds Robert A. Sawicki 1987-08-25
4532058 Spirolactone condensation product dispersants and lubricants containing same 1985-07-30
4428848 Molybdenum derivatives and lubricants containing same Stephen A. Levine, Raymond C. Schlicht, James R. Whiteman 1984-01-31
4396399 Detergent and corrosion inhibitor and motor fuel composition containing same Benjamin J. Kaufman 1983-08-02
4382007 Novel dispersant-VI improvers and lubricating oil containing same Richard F. Love, James O. Waldbillig 1983-05-03
4339336 Quaternary ammonium succinimide salt composition and lubricating oil containing same Kenneth G. Hammond 1982-07-13
4338206 Quaternary ammonium succinimide salt composition and lubricating oil containing same Kenneth G. Hammond 1982-07-06
4326973 Quaternary ammonium succinimide salt composition and lubricating oil containing same Kenneth G. Hammond 1982-04-27
4325876 Process for the manufacture of an alkenylsuccinic anhydride Gary D. Lee 1982-04-20
4324672 Dispersant alkenylsuccinimides containing oxy-reduced molybdenum and lubricants containing same Stephen A. Levine, Raymond C. Schlicht 1982-04-13
4315826 Reaction products of carbon disulfide with thiomolybdenum derivatives of alkenylsuccinimides and lubricants containing same Raymond C. Schlicht, Stephen A. Levine 1982-02-16
4306070 Method for preparing quaternary ammonium salt of ester-lactone Kenneth G. Hammond 1981-12-15
4273663 Quaternary ammonium diester salt composition and lubricating oil containing same Kenneth G. Hammond 1981-06-16
4253980 Quaternary ammonium salt of ester-lactone and hydrocarbon oil containing same Kenneth G. Hammond 1981-03-03
4251380 Quaternary ammonium diester salt composition and hydrocarbon oil containing same Kenneth G. Hammond 1981-02-17
4248719 Quaternary ammonium salts and lubricating oil containing said salts as dispersants Gary D. Lee 1981-02-03
4244828 Lubricating oil composition John W. Hodge 1981-01-13