Issued Patents All Time
Showing 26–46 of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4895600 | Asphalt compositions containing anti-stripping additives prepared from amines or polyamines and phosphonates | Dane Chang | 1990-01-23 |
| 4872996 | Use of aminophosphonic acids to inhibit scale formation and corrosion caused by manganese in water systems | Jeffrey G. Grierson, David A. Wilson | 1989-10-10 |
| 4799995 | Scale inhibition formulations for kraft digesters | Lance A. Cooper, Thomas M. Hopkins, II | 1989-01-24 |
| 4786329 | Asphalt compositions containing anti-stripping additives prepared from amines or polyamines and phosphonates | Dane Chang | 1988-11-22 |
| 4770791 | Control of metal ions using bis(aminoalkyl) piperazine derivatives | Jaime Simon, David A. Wilson | 1988-09-13 |
| 4758635 | Polyamindoamine based metal ion control compound | David A. Wilson, Jaime Simon | 1988-07-19 |
| 4680396 | Bis(aminoalkyl)piperazine derivatives and their use as metal ion control agents | Jaime Simon, David A. Wilson | 1987-07-14 |
| 4568468 | Use of norbornane derived compounds as threshold agents | Jaime Simon, David A. Wilson | 1986-02-04 |
| 4568469 | Use of methylene phosphonic acid compositions derived from aminohydrocarbyl piperazine-urea adducts to inhibit scale | David A. Wilson | 1986-02-04 |
| 4560548 | Bone seeking Tc-99m complexes of phosphonate derivatives of bis(aminoalkyl)piperazine | Jaime Simon, David A. Wilson, Wynn A. Volkert | 1985-12-24 |
| 4540508 | Alkylene phosphonic acid scale inhibitor compositions | David A. Wilson | 1985-09-10 |
| 4518777 | Methylene phosphonic acid scale inhibitor compositions derived from aminohydrocarcarbylpiperazine urea adducts | David A. Wilson | 1985-05-21 |
| 4500356 | Methylenephosphonic acid derivatives of bis(aminoalkyl)piperazines as cement set retarding agents | Jaime Simon, David A. Wilson | 1985-02-19 |
| 4500469 | Metal ion control compounds based on norbornane | Jaime Simon, David A. Wilson | 1985-02-19 |
| 4489203 | Polyumeric alkylene phosphoric acid piperazine derivatives as scale inhibitors | David A. Wilson | 1984-12-18 |
| 4472200 | New additives for retarding setting of cement from methylenephosphonated aminohydrocarbylpiperazine-urea adducts | David A. Wilson | 1984-09-18 |
| 4469663 | Scale control in flue gas desulfurization | David A. Wilson, Gary D. Gatton | 1984-09-04 |
| 4468252 | Set retarding additives for cement from aminomethylenephosphonic acid derivatives | David A. Wilson | 1984-08-28 |
| 4466835 | Cement compositions containing set retarders | David A. Wilson | 1984-08-21 |
| 4466836 | Set retarding compounds for use in cement slurries | David A. Wilson | 1984-08-21 |
| 4312815 | Preparation of a zinc chelate having improved stability | David A. Wilson, Freddie Griffin, Jr. | 1982-01-26 |