Issued Patents All Time
Showing 101–125 of 176 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5047160 | Polyanhydride modified adducts or reactants and oleaginous compositions containing same | Jacob Emert, Robert D. Lundberg | 1991-09-10 |
| 5043084 | Novel polymer substituted amino phenol mannich base amido-amine dispersant additives (PT-742) | Robert D. Lundberg | 1991-08-27 |
| 5034018 | Fuel additives derived from amido-amines (PT-731) | Robert D. Lundberg | 1991-07-23 |
| 5032320 | Lactone modified mono- or dicarboxylic acid based adduct dispersant compositions | Robert D. Lundberg | 1991-07-16 |
| 5030369 | Oil soluble dispersant additives useful in oleaginous compositions | Jacob Emert, Robert D. Lundberg | 1991-07-09 |
| 5026495 | Oil soluble dispersant additives useful in oleaginous compositions | Jacob Emert, Robert D. Lundberg | 1991-06-25 |
| 5017299 | Novel ethylene alpha-olefin copolymer substituted Mannich base lubricant dispersant additives | Won R. Song, Robert D. Lundberg, Robert A. Kleist | 1991-05-21 |
| 4971711 | Lactone-modified, mannich base dispersant additives useful in oleaginous compositions | Robert D. Lundberg | 1990-11-20 |
| 4965375 | Thio-bis-(alkyl lactone acid esters) and thio-bis-(hydrocarbyl diacid esters) are useful additives for lubricating compositions | Stanley J. Brois | 1990-10-23 |
| 4963275 | Dispersant additives derived from lactone modified amido-amine adducts | Robert D. Lundberg | 1990-10-16 |
| 4956107 | Amide dispersant additives derived from amino-amines | Robert D. Lundberg | 1990-09-11 |
| 4954277 | Lactone modified, esterified or aminated additives useful in oleaginous compositions and compositions containing same | Robert D. Lundberg | 1990-09-04 |
| 4954276 | Lactone modified adducts or reactants and oleaginous compositions containing same | Robert D. Lundberg | 1990-09-04 |
| 4943382 | Lactone modified dispersant additives useful in oleaginous compositions | Robert D. Lundberg | 1990-07-24 |
| 4936866 | Lactone modified polymeric amines useful as oil soluble dispersant additives | Robert D. Lundberg | 1990-06-26 |
| 4933098 | Lactone modified viscosity modifiers useful in oleaginous compositions | Robert D. Lundberg | 1990-06-12 |
| 4913830 | Lactone-modified, mannich base dispersant additives useful in oleaginous compositions | Robert D. Lundberg | 1990-04-03 |
| 4910263 | Oil additives containing a thiocarbamyl moiety | Stanley J. Brois | 1990-03-20 |
| 4906394 | Lactone modified mono-or dicarboxylic acid based adduct dispersant compositions | Robert D. Lundberg | 1990-03-06 |
| 4906252 | Polyolefinic succinimide polyamine alkyl acetoacetate adducts as dispersants in fuel oil compositions | Robert D. Lundberg, Robert A. Kleist, Ricardo Bloch | 1990-03-06 |
| 4880923 | Macrocyclic polyamine and polycyclic polyamine multifunctional lubricating oil additives | Stanley J. Brois | 1989-11-14 |
| 4870197 | Method for preparing salts of polyolefinic substituted dicarboxylic acids | Robert D. Lundberg, Laura J. Colcord-Hernandez | 1989-09-26 |
| 4866139 | Lactone modified, esterified dispersant additives useful in oleaginous compositions | Robert D. Lundberg | 1989-09-12 |
| 4866187 | Thio-bis(alkyl lactone acid esters) and thio-bis-(hydrocarbyl diacid esters) are useful additives for lubricating compositions | Stanley J. Brois | 1989-09-12 |
| 4866142 | Lactone modified polymeric amines useful as oil soluble dispersant additives | Robert D. Lundberg | 1989-09-12 |