Issued Patents All Time
Showing 25 most recent of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8691096 | Oil filters containing strong base and methods of their use | Scott P. Lockledge | 2014-04-08 |
| 8607991 | Materials and processes for reducing combustion by-products in a lubrication system for an internal combustion engine | Scott P. Lockledge | 2013-12-17 |
| 8016125 | Materials, filters, and systems for immobilizing combustion by-products and controlling lubricant viscosity | Scott P. Lockledge | 2011-09-13 |
| 7520371 | Materials and processes for reducing combustion by-products in a lubrication system for an internal combustion engine | Scott P. Lockledge | 2009-04-21 |
| 5478463 | Method of reducing sludge and varnish precursors in lubricating oils | Warren A. Thaler, Cruise K. Jones, Jacob Emert, Abhimanyu O. Patil | 1995-12-26 |
| 5225081 | Method for removing polynuclear aromatics from used lubricating oils | — | 1993-07-06 |
| 5209839 | Method of removing hydroperoxides from lubricating oils using sodium hydroxide and a metal thiophosphate | Harold Shaub, Arthur DiBenedetto | 1993-05-11 |
| 5164101 | Method for reducing piston deposits | Warren A. Thaler, Eric Bannister, Paul K. Ladwig | 1992-11-17 |
| 5156758 | Polymeric amides for multifunctional VI improvers | Warren A. Thaler, Joseph Wegensommer, Donald N. Schulz, John B. Gardiner | 1992-10-20 |
| 5112482 | Filter for removing hydroperoxides from lubricating oils | Harold Shaub, Arthur DiBenedetto | 1992-05-12 |
| 5069799 | Method for rejuvenating lubricating oils | Paul K. Ladwig | 1991-12-03 |
| 5068044 | Method for reducing piston deposits | Warren A. Thaler, Eric Bannister, Paul K. Ladwig | 1991-11-26 |
| 5042617 | Method of reducing the presence of sludge in lubricating oils | Warren A. Thaler | 1991-08-27 |
| 4997546 | Method of removing hydroperoxides from lubricating oils | Harold Shaub, Arthur DiBenedetto | 1991-03-05 |
| 4977871 | Removal of carcinogenic hydrocarbons from used lubricating oil using activated carbon | Donald J. Norris, Harold Shaub | 1990-12-18 |
| 4973764 | Alkylphenols and derivatives thereof via phenol alkylation by cracked petroleum distillates | Alexis A. Oswald, Ram N. Bhatia, Edmund J. Mozeleski, Thomas L. Ashcraft | 1990-11-27 |
| 4914246 | Alkylphenols and derivatives thereof via phenol alkylation by cracked petroleum distillates | Alexis A. Oswald, Ram N. Bhatia, Edmund J. Mozeleski, Thomas L. Ashcraft | 1990-04-03 |
| 4906389 | Method for reducing piston deposits | Warren A. Thaler, Eric Bannister, Paul K. Ladwig | 1990-03-06 |
| 4686054 | Succinimide lubricating oil dispersant | Max J. Wisotsky, Ricardo Bloch, Frank J. Chen, Antonio Gutierrez | 1987-08-11 |
| 4684473 | Lubricant oil composition with improved friction reducing properties | Jan Bock, Antonio Gutierrez, Max L. Robbins, Harold Shaub, Peter L. Steyn | 1987-08-04 |
| 4632769 | Ethylene copolymer viscosity index improver-dispersant additive useful in oil compositions | Antonio Gutierrez, Ricardo Bloch, Jack E. Johnston | 1986-12-30 |
| 4584386 | Alkylthiomethyl substituted mono-oxazolines | Antonio Gutierrez, Thad O. Walker, Stanley J. Brois | 1986-04-22 |
| 4569750 | Method for inhibiting deposit formation in structures confining hydrocarbon fluids | Antonio Gutierrez, Stanley J. Brois, Donald F. Jacques, Gary L. Behelfer, Thomas M. Ferrell +1 more | 1986-02-11 |
| 4557847 | Ethylene copolymer viscosity index improver-dispersant additive useful in oil compositions | Antonio Gutierrez, Ricardo Bloch | 1985-12-10 |
| 4558170 | Polyisobutylene process | Frank J. Chen | 1985-12-10 |