Issued Patents All Time
Showing 76–100 of 234 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5128056 | Ethylene alpha-olefin copolymer substituted amino phenol mannich base lubricant dispersant additives | Antonio Gutierrez, Won R. Song, Robert A. Kleist | 1992-07-07 |
| 5124056 | Polymer substituted amido-amine Mannich Base lubricant dispersant additives | Antonio Gutterrez | 1992-06-23 |
| 5118432 | Dispersant additive mixtures for oleaginous compositions | Jacob Emert, Malcolm Waddoups | 1992-06-02 |
| 5068278 | Novel polyampholyte compositions possessing high degrees of acid, base, or salt tolerance in solution | Dennis G. Peiffer | 1991-11-26 |
| 5057617 | Dispersant additives prepared from monoepoxy thiols | Jacob Emert | 1991-10-15 |
| 5053151 | Multifunctional viscosity index improver derived from amido-amine exhibiting improved low temperature viscometric properties | David Yen-Lung Chung, Antonio Gutierrez, John E. Johnston, Mark J. Struglinski | 1991-10-01 |
| 5053150 | Polyepoxide modified adducts or reactants and oleaginous compositions containing same | Jacob Emert | 1991-10-01 |
| 5047160 | Polyanhydride modified adducts or reactants and oleaginous compositions containing same | Jacob Emert, Antonio Gutierrez | 1991-09-10 |
| 5043084 | Novel polymer substituted amino phenol mannich base amido-amine dispersant additives (PT-742) | Antonio Gutierrez | 1991-08-27 |
| 5043083 | Method for preparing salts of polyolefinic substituted dicarboxylic acids in oleaginous mixtures of reduced viscosity | Laura J. Colcord, Jacob Emert, Malcolm Waddoups | 1991-08-27 |
| 5034018 | Fuel additives derived from amido-amines (PT-731) | Antonio Gutierrez | 1991-07-23 |
| 5032653 | Direct synthesis by cationic polymerization of nitrogen-containing polymers | Herve M. Cheradame, Frank J. Chen, Jean De La Croix Habimana | 1991-07-16 |
| 5032320 | Lactone modified mono- or dicarboxylic acid based adduct dispersant compositions | Antonio Gutierrez | 1991-07-16 |
| 5030370 | Novel dispersant viscosity index improver compositions | Abhimanyu O. Patil, Sudhin Datta, John B. Gardiner | 1991-07-09 |
| 5030369 | Oil soluble dispersant additives useful in oleaginous compositions | Jacob Emert, Antonio Gutierrez | 1991-07-09 |
| 5026495 | Oil soluble dispersant additives useful in oleaginous compositions | Jacob Emert, Antonio Gutierrez | 1991-06-25 |
| 5017299 | Novel ethylene alpha-olefin copolymer substituted Mannich base lubricant dispersant additives | Antonio Gutierrez, Won R. Song, Robert A. Kleist | 1991-05-21 |
| 5006147 | Biodegradable barrier films of ionomer polymer | Warren A. Thaler, Pacifico V. Manalastas, Evelyn N. Drake | 1991-04-09 |
| 4997470 | Biodegradable barrier films of ionomer polymer | Warren A. Thaler, Pacifico V. Manalastas, Evelyn N. Drake | 1991-03-05 |
| 4982045 | Fixed bed process for polymerizing liquid butenes | Frank J. Chen | 1991-01-01 |
| 4979980 | Biodegradable barrier films of ionomer polymer | Warren A. Thaler, Pacifico V. Manalastas, Evelyn N. Drake | 1990-12-25 |
| 4978461 | Low and high temperature drilling fluids based on sulfonated terpolymer ionomers | Dennis G. Peiffer, John C. Newlove, Eugen R. Werlein | 1990-12-18 |
| 4971711 | Lactone-modified, mannich base dispersant additives useful in oleaginous compositions | Antonio Gutierrez | 1990-11-20 |
| 4970260 | Novel viscosifiers for salt-containing solutions based on polymer complexes | Robert R. Phillips, Dennis G. Peiffer | 1990-11-13 |
| H837 | Drilling fluids based on polymer complexes | Dennis G. Peiffer, Lawrence P. Sedillo, John C. Newlove | 1990-11-06 |