Issued Patents All Time
Showing 51–75 of 232 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5217502 | Quaternary ammonium salt derived thiadiazoles as multifunctional antioxidant and antiwear additives | Shih-Ying Hsu | 1993-06-08 |
| 5215549 | Thioester derived hindered phenols and aryl-amines as antioxidant and antiwear additives | Shih-Ying Hsu | 1993-06-01 |
| 5211863 | Grease composition | John P. Doner, John A. Keller, Jr. | 1993-05-18 |
| 5211860 | Grease composition | John P. Doner, John A. Keller, Jr. | 1993-05-18 |
| 5207939 | Dihydrocarbyl substituted phenylenediamine-derived phenolic products as antioxidants | L. Oscar Farng | 1993-05-04 |
| 5207937 | Amine salts of sulfur-containing alkylated phenols or alkylated naphthols as multifunctional antioxidant and antiwear additives | Shih-Ying Hsu, Arjun K. Goyal, Liwen Wei | 1993-05-04 |
| 5200101 | Arylamine/hindered phenol, acid anhydride and thioester-derived multifunctional antioxidant, antiwear and rust inhibiting additives | Shin-Ying Hsu, Douglas E. Johnson, David A. Blain | 1993-04-06 |
| 5199960 | Sulfur coupled hydrocarbyl derived mercaptobenzothiazole adducts as multifunctional antiwear additives and compositions containing same | Liehpao O. Farng, James G. Murray | 1993-04-06 |
| 5198131 | Dialkano- and trialkanol amine-derived thioester multifunctional antiwear additives | Shih-Ying Hsu | 1993-03-30 |
| 5194167 | Quaternary ammonium salts of mercaptothiadiazoles and related heterocyclic derivatives as antioxidant and antiwear additives | Shih-Ying Hsu | 1993-03-16 |
| 5171465 | Phenylenediamine-derived phosphonates as multifunctional additives for lubricants | Liehpao O. Farng | 1992-12-15 |
| 5171861 | Thiadiazole-aryl sulfonate reaction products as multifunctional additives and compositions containing same | Robert E. Ernhoffer, Arjun K. Goyal, Derek A. Law, Shi-Ming Wu | 1992-12-15 |
| 5169547 | Amine-containing hindered phenolic antioxidant lubricant additives and compositions thereof | Liehpao O. Farng | 1992-12-08 |
| 5160507 | Multifunctional ester-type additives for liquid hydrocarbyl or hydrocarbyloxy fuel | — | 1992-11-03 |
| 5137649 | Mixed alcohol/dimercaptothiadiazole-derived hydroxy borates as antioxidant/antiwear multifunctional additives | Liehpao O. Farng, William F. Olszewski | 1992-08-11 |
| 5135670 | Sulfurized olefin extreme pressure/antiwear additives and compositions thereof | Douglas E. Johnson, William F. Olszewski | 1992-08-04 |
| 5132034 | Thioester derived hindered phenols and aryl-amines as antioxidant and antiwear additives | Shih-Ying Hsu | 1992-07-21 |
| 5126063 | Borated hydroxyalkyl esters of dithiocarbamic acids as multifunctional additives for lubricant compositions | Angeline B. Cardis, Liehpao O. Farng, Abraham O. M. Okorodudu | 1992-06-30 |
| 5126397 | Quaternary ammonium salt derived thiadiazoles as multifunctional antioxidant and antiwear additives | Shih-Ying Hsu | 1992-06-30 |
| 5120456 | Triazole/arylamine-modified sulfonates as multifunctional additives for lubricants | Arjuan K. Goyal, Derek A. Law, Shi-Ming Wu | 1992-06-09 |
| 5104579 | Phosphonate adducts of olefinic lubricants having enhanced properties | Linda A. Benjamin, Derek A. Law | 1992-04-14 |
| 5084194 | Grease composition | John P. Doner, John A. Keller, Jr. | 1992-01-28 |
| 5084069 | Multifunctional additives for lubricants and fuels | Liehpao O. Farng | 1992-01-28 |
| 5073279 | Sulfur coupled hydrocarbyl derived mercaptobenzothiazole adducts as multifunctional antiwear additives and compositions containing same | Liehpao O. Farng, James G. Murray | 1991-12-17 |
| 5071577 | Phosphite derived propylene based multifunctional lubricants and multifunctional lubricant additives | Linda A. Benjamin, Derek A. Law, Nancy M. Page | 1991-12-10 |