RB

Robert T. Biggs

Chevron: 9 patents #523 of 4,788Top 15%
ET Ethyl: 1 patents #298 of 494Top 65%
Overall (All Time): #526,416 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5942471 Dispersant and antioxidant VI improvers based on olefin copolymers containing phenothiazine and aromatic amine groups Maria M. Kapuscinski 1999-08-24
5424366 Multifunctional viscosity index improver containing phenothiazine Maria M. Kapuscinski, Theodore E. Nalesnik, Benjamin J. Kaufman 1995-06-13
5374364 Multifunction viscosity index improvers Maria M. Kapuscinski, Nicholas Benfaremo 1994-12-20
5356999 Multifunctional viscosity index improvers based on polymers containing sulfonamides Maria M. Kapuscinski, Benjamin J. Kaufman 1994-10-18
5275746 Multifunctional viscosity index improver containing phenothiazine Maria M. Kapuscinski, Benjamin J. Kaufman, Theodore E. Nalesnik 1994-01-04
5200100 Multifunctional viscosity index improver containing phenothiazine Maria M. Kapuscinski, Theodore E. Nalesnik, Benjamin J. Kaufman 1993-04-06
5135671 Multifunctional viscosity index improver containing units from unsaturated chlorides and aromatic amines Maria M. Kapuscinski, Theodore E. Nalesnik, Raymond C. Schlicht 1992-08-04
5094766 Dispersant-antioxidant viscosity index improver Maria M. Kapuscinski, Theodore E. Nalesnik 1992-03-10
5021177 Dispersant-antioxidant multifunctional viscosity index improver Maria M. Kapuscinski, Thomas F. DeRosa, Theodore E. Nalesnik 1991-06-04
4948524 Dispersant anti-oxidant VI improver and lubricating oil composition containing same Maria M. Kapuscinski, Theodore E. Nalesnik, Harry Chafetz, Christopher S. Liu 1990-08-14