| 5160642 |
Polyimide quaternary salts as clay stabilization agents |
John A. Schield, Gary A. Scherubel |
1992-11-03 |
| 5110874 |
Methods and compositions for reduction of drag in hydrocarbon fluids |
James Chang |
1992-05-05 |
| 4983186 |
Methods and compositions for reduction of drag in hydrocarbon fluids |
James Chang |
1991-01-08 |
| 4757862 |
Shale stabilizer and method of use thereof |
John A. Schield |
1988-07-19 |
| 4708993 |
Cold flow improver and method of use thereof |
John A. Schield, Lawrence J. Cunningham |
1987-11-24 |
| 4617025 |
Ester-containing halopolyalkylenes |
John A. Schield |
1986-10-14 |
| 4568726 |
Ester-containing halopolyalkylenes |
John A. Schield |
1986-02-04 |
| 4568359 |
Ester-containing halopolyalkylenes |
John A. Schield |
1986-02-04 |
| 4554327 |
Ester-containing halopolyalkylenes |
John A. Schield |
1985-11-19 |
| 4553980 |
Ester-containing halopolyalkylenes |
John A. Schield |
1985-11-19 |
| 4544712 |
Ester-containing halopolyalkylenes |
John A. Schield |
1985-10-01 |
| 4541839 |
Ester-containing halopolyalkylenes |
John A. Schield |
1985-09-17 |
| 4537601 |
Antistats containing acrylonitrile copolymers and polyamines |
— |
1985-08-27 |
| 4536551 |
Ester-containing halopolyalkylenes |
John A. Schield |
1985-08-20 |
| 4536191 |
Ester-containing halopolyalkylenes |
John A. Schield |
1985-08-20 |
| 4491651 |
Antistats containing acrylonitrile copolymers and polyamines |
— |
1985-01-01 |
| 4471098 |
Ester-containing halopolyalkylenes |
John A. Schield |
1984-09-11 |
| 4422953 |
Corrosion inhibition of halocarbon systems |
Mark T. Grace, Eddie C. French |
1983-12-27 |
| 4388452 |
Olefin-acrylonitrile copolymers and uses thereof |
Rudolf S. Buriks |
1983-06-14 |
| 4333741 |
Olefin-acrylonitrile copolymers and uses thereof |
Rudolf S. Buriks |
1982-06-08 |
| 4259087 |
Antistats containing acrylonitrile copolymers and polyamines |
J. Irvine Knepper, Neil E. S. Thompson |
1981-03-31 |