Issued Patents All Time
Showing 26–50 of 58 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5190698 | Poly(alkylene oxide)vinyl carboxylic ester containing polymer/inorganic oxide composites and methods of making | Bradley K. Coltrain, Neil T. Ferrar, Christine J. T. Landry | 1993-03-02 |
| 5149824 | Process for preparing arylamide bisnadimides | Robert James Perry, Richard W. Blevins | 1992-09-22 |
| 5104971 | Preparation of polyamides from carbon monoxide, diamine and diiodide | Robert James Perry, Richard W. Blevins | 1992-04-14 |
| 5077365 | Preparation of copolymers of dioxolanes and maleic anhydride | Richard W. Blevins | 1991-12-31 |
| 5071931 | Butadiene monoepoxide/maleic anhydride copolymers | Richard W. Blevins | 1991-12-10 |
| 5071930 | Butadiene monoepoxide/maleic anhydride copolymers | Richard W. Blevins | 1991-12-10 |
| 5071932 | Butadiene monoepoxide/maleic anhydride copolymers | Richard W. Blevins | 1991-12-10 |
| 5019635 | Copolymers of dioxolanes and maleic anhydride | Richard W. Blevins | 1991-05-28 |
| 5013806 | Butadiene monoepoxide/maleic anhydride copolymers | Richard W. Blevins | 1991-05-07 |
| 4933467 | Preparation of imides | Robert James Perry | 1990-06-12 |
| 4933468 | Preparation of amide-imides | Robert James Perry | 1990-06-12 |
| H577 | Aqueous drag reduction with novel acrylamide-N-alkyl acrylamide | Jan Bock, Ralph M. Kowalik, Donald B. Siano | 1989-02-07 |
| 4764625 | Process for preparing arylamines | John F. Yanus, Dale S. Renfer | 1988-08-16 |
| 4714779 | Aromatic aryl amine polymers | John F. Yanus | 1987-12-22 |
| 4694046 | Hydrophobically associating terpolymers of acrylamide, salts of acrylic acid and alkyl acrylamide | Jan Bock, Donald B. Siano | 1987-09-15 |
| 4552939 | Preparation of sulfonated copolymers by suspension copolymerization | Warren A. Thaler, Robert D. Lundberg | 1985-11-12 |
| 4540762 | Copolymers of sodium styrene sulfonate and sodium-N-(4-sulfophenyl)-maleimide | — | 1985-09-10 |
| 4540496 | Intramolecular polymer complexes - viscosifiers for high ionic strength drilling fluids | Dennis G. Peiffer, Robert D. Lundberg, Thad O. Walker | 1985-09-10 |
| 4528348 | Micellar process for the production of acrylamide-alkyl acrylamide copolymers | Donald B. Siano, Jan Bock | 1985-07-09 |
| 4525522 | Drilling fluids based on sulfonated thermoplastic polymers having improved low temperature rheological properties | Thad O. Walker, Dennis G. Peiffer, Robert D. Lundberg | 1985-06-25 |
| 4521580 | Microemulsion process for producing acrylamide-alkyl acrylamide copolymers | Donald B. Siano, Jan Bock | 1985-06-04 |
| 4520182 | Acrylamide-alkylacrylamide copolymers | Donald B. Siano, Jan Bock | 1985-05-28 |
| 4483960 | Emulsion type adhesive compositions | Pawan K. Agarwal, Robert D. Lundberg, Morris L. Evans | 1984-11-20 |
| 4478727 | Sodium styrene sulfonate-co-sodium-n-(4-sulfophenyl)-maleimide- an improved viscosity control additive | Thad O. Walker, Warren A. Thaler | 1984-10-23 |
| 4461884 | Intramolecular polymeric complexes-viscosifiers for acid, base and salt (aqueous) solutions | Dennis G. Peiffer, Robert D. Lundberg | 1984-07-24 |