Issued Patents All Time
Showing 26–41 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5097039 | Phenolic benzothiazole derivatives and their use as corrosion inhibitors | Adalbert Braig, David G. Leppard, Robert C. Wasson, Emyr Phillips | 1992-03-17 |
| 5069805 | Phenolic benzothiazole derivatives and their use as corrosion inhibitors | Adalbert Braig, David G. Leppard, Robert C. Wasson, Emyr Phillips | 1991-12-03 |
| 5008459 | Substituted phenols as stabilizers | Samuel Evans, Paul Dubs | 1991-04-16 |
| 4965006 | N-substituted tetrahydroquinolines for use as antioxidants in lubricants | Samuel Evans | 1990-10-23 |
| 4929732 | N-substituted tetrahydroquinolines for use as antioxidants in lubricants | Samuel Evans | 1990-05-29 |
| 4919832 | N-substituted tetrahydroquinolines for use as antioxidants in lubricants | Samuel Evans | 1990-04-24 |
| 4894091 | Phenolic benzothiazole derivatives and their use as corrosion inhibitors | Adalbert Braig, David G. Leppard, Robert C. Wasson, Emyr Phillips | 1990-01-16 |
| 4874885 | Process for the preparation of mercaptomethylphenols | Werner Stegmann, Samuel Evans, Roger Martin, Reto Luisoli | 1989-10-17 |
| 4863982 | Isocyanuric acid derivatives | Werner Stegmann, Eduard Troxler, Peter Hofmann, Paul Dubs | 1989-09-05 |
| 4857572 | Substituted phenols as stabilizers | Gerrit Knobloch | 1989-08-15 |
| 4855345 | Stabilizers for organic polymers | Siegfried Rosenberger | 1989-08-08 |
| 4828741 | N-substituted tetrahydroquinolines for use as antioxidants in lubricants | Samuel Evans | 1989-05-09 |
| 4798822 | Selected 3,9-di(2,2,6,6-tetramethyl-4-piperidyl)-2,4,8,10-tetraoxa-3,9-diphosphas piro [5,5]undecanes | Michael Rasberger, Peter Hofmann, Paul Dubs | 1989-01-17 |
| 4759862 | O,p-bifunctionalized o'-substituted phenols | — | 1988-07-26 |
| 4699939 | Ortho cyclohexyl, para hydroxy aralkanoic acid esters and amide antioxidants | Ivan Orban, Paul Dubs, Samuel Evans, Peter Hofmann | 1987-10-13 |
| 4661594 | Certain [(2,2,6,6-tetramethyl-4-piperidyl)amino]-1,3,2-dioxaphosphorinanes useful as stabilizers for protecting resins | Michael Rasberger, Peter Hofmann, Paul Dubs | 1987-04-28 |