Issued Patents All Time
Showing 76–100 of 176 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5252238 | Multifunctional viscosity index improver derived from amido-amine exhibiting improved low temperature viscometric properties | David Yen-Lung Chung, John E. Johnston, Mark J. Struglinski, Robert D. Lundberg | 1993-10-12 |
| 5242612 | Mixed phosphorous- and sulfur-containing reaction products useful in power transmitting compositions | Jack Ryer, James S. Puckace, Raymond F. Watts, Stanley J. Brois, Craig W. Gleason | 1993-09-07 |
| 5238466 | Fuel additives derived from amido-amines | Robert D. Lundberg | 1993-08-24 |
| 5230817 | Polyanhydride modified adducts or reactants and oleaginous compositions containing same | Robert D. Lundberg, Jacob Emert | 1993-07-27 |
| 5230834 | Viscosity stable multifunctional viscosity index modifier additives derived from amido amines | Robert D. Lundberg | 1993-07-27 |
| 5229020 | Branched amido-amine dispersant additives | Robert D. Lundberg | 1993-07-20 |
| 5229022 | Ethylene alpha-olefin polymer substituted mono- and dicarboxylic acid dispersant additives (PT-920) | Won R. Song, Albert Rossi, Howard W. Turner, Howard C. Welborn, Jr., Robert D. Lundberg +1 more | 1993-07-20 |
| 5225092 | Ethylene alpha-olefin polymer substituted amine dispersant additives | Jacob Emert, Alan M. Schilowitz, Won R. Song | 1993-07-06 |
| 5225091 | Ethylene alpha-olefin polymer substituted thiocarboxylic acid lubricant dispersant additives | Won R. Song, Robert D. Lundberg, Robert A. Kleist | 1993-07-06 |
| 5219480 | Ethylene alpha-olefin Mannich Base viscosity index improver/dispersant additives derived from amino phenols and monosecondary amines | Robert A. Kleist, Ricardo Bloch | 1993-06-15 |
| 5217634 | Polyepoxide modified adducts or reactants and oleaginous compositions containing same | Jacob Emert, Robert D. Lundberg | 1993-06-08 |
| 5213698 | Amido-amine ashless dispersants | Robert D. Lundberg, Robert A. Kleist | 1993-05-25 |
| 5210146 | Multifunctional viscosity index improver derived from polyamine containing one primary amino group and at least one secondary amino group exhibiting improved low temperature viscometric properties | David Yen-Lung Chung | 1993-05-11 |
| 5200103 | Ethylene alpha-olefin copolymer substituted Mannich base lubricant dispsersant additives | Won R. Song, Robert D. Lunberg, Robert A. Kleist | 1993-04-06 |
| 5186851 | Ethylene alpha-olefin copolymer substituted mannich base lubricant dispersant additives | Won R. Song, Robert D. Lundberg, Robert A. Kleist | 1993-02-16 |
| 5185090 | Low pressure derived mixed phosphorous- and sulfur-containing reaction products useful in power transmitting compositions and process for preparing same | Jack Ryer, James S. Puckace, Raymond F. Watts, Craig W. Gleason, Daniel R. Mills +1 more | 1993-02-09 |
| 5162526 | Macrocyclic polyamine and polycyclic polyamine multifunctional lubricating oil | Stanley J. Brois | 1992-11-10 |
| 5158696 | Oil soluble dispersant additives modified with bis-keto/thioketo compounds | Jacob Emert, Robert D. Lundberg | 1992-10-27 |
| 5135669 | Hydrogenated lecithin for friction and flow properties | Stanley J. Brois, Jack Ryer, Frank Femino, Harold E. Deen | 1992-08-04 |
| 5128056 | Ethylene alpha-olefin copolymer substituted amino phenol mannich base lubricant dispersant additives | Won R. Song, Robert D. Lundberg, Robert A. Kleist | 1992-07-07 |
| 5118835 | Thio-bis(alkyl lactone acid esters) and thio-bis (Hydrocarbyl diacid esters) are usefull additives for lubricating compositions | Stanley J. Brois | 1992-06-02 |
| 5118433 | Multifunctional viscosity index improver derived from amido-amine and degraded ethylene copolymer exhibiting improved low temperature viscometric properties | David Yen-Lung Chung, Mark J. Struglinski | 1992-06-02 |
| 5102427 | Middle distillate fuel having improved low temperature flow properties | Nicholas Feldman | 1992-04-07 |
| 5078893 | Synergistic combination of additives useful in power transmitting compositions | Jack Ryer | 1992-01-07 |
| 5053151 | Multifunctional viscosity index improver derived from amido-amine exhibiting improved low temperature viscometric properties | David Yen-Lung Chung, John E. Johnston, Mark J. Struglinski, Robert D. Lundberg | 1991-10-01 |