Issued Patents All Time
Showing 151–175 of 234 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4575530 | Multifunctional polymeric additive | Dennis G. Peiffer | 1986-03-11 |
| 4552939 | Preparation of sulfonated copolymers by suspension copolymerization | Warren A. Thaler, S. Richard Turner | 1985-11-12 |
| 4552916 | Polymer compositions based on sulfonated ionomers and amine containing polymers | Dennis G. Peiffer, Robert R. Phillips | 1985-11-12 |
| 4547542 | Sulfonated polymer and compositions thereof | Warren A. Thaler | 1985-10-15 |
| 4543385 | Blend compositions of sulfo EPDM's having improved compression set properties | Pawan K. Agarwal, Ilan Duvdevani | 1985-09-24 |
| 4540496 | Intramolecular polymer complexes - viscosifiers for high ionic strength drilling fluids | Dennis G. Peiffer, Thad O. Walker, S. Richard Turner | 1985-09-10 |
| 4537919 | Gelation of hydrocarbon solutions of blends of associating and non-associating polymers | Pawan K. Agarwal | 1985-08-27 |
| 4537688 | Low and high temperature drilling fluids based on sulfonated terpolymer ionomers | Dennis G. Peiffer, Kenneth W. Pober | 1985-08-27 |
| 4536547 | Polymer complexes of a neutralized ionic polymer and a polycaprolactone polymer | Robert R. Phillips | 1985-08-20 |
| 4536310 | Hydrocarbon based gels and solutions of blends of sulfonate ionomers and their precursors extended over critical regions | Pawan K. Agarwal, William W. Graessley, Gay Ver Strate | 1985-08-20 |
| 4536539 | Dilatant behavior of interpolymer complexes in aqueous solution | Dennis G. Peiffer, Ilan Duvdevani | 1985-08-20 |
| 4532302 | Process for the sulfonation of an elastomeric polymer | Joseph Wagensommer, Robert R. Klein | 1985-07-30 |
| 4530986 | Elastomeric sulfonate terpolymers and process for forming the sulfonated terpolymers | Robert A. Weiss, Allen C. Werner | 1985-07-23 |
| 4530987 | Sulfonated copolymers and process for forming the sulfonated copolymers | Robert W. Lenz, Bernd Oster | 1985-07-23 |
| 4529527 | Method for controlling viscosity of lubricating oils | Robert R. Phillips, James E. McGrath | 1985-07-16 |
| 4526951 | Polymeric compositions of co- and terpolymers | Robert A. Weiss | 1985-07-02 |
| 4525522 | Drilling fluids based on sulfonated thermoplastic polymers having improved low temperature rheological properties | S. Richard Turner, Thad O. Walker, Dennis G. Peiffer | 1985-06-25 |
| 4522960 | Controlled gelation on nonaqueous solutions containing low charge density polyampholytes | Dennis G. Peiffer | 1985-06-11 |
| 4520158 | Nonaqueous solvent soluble polyampholytes-viscosifier and shear thickening additive | Dennis G. Peiffer, Ilan Duvdevani, Warren A. Thaler | 1985-05-28 |
| 4517333 | Novel viscosifiers for aqueous fluids based on polymer complexes | Robert R. Phillips, Dennis G. Peiffer | 1985-05-14 |
| 4517250 | Emulsion type adhesive compositions | Pawan K. Agarwal, Joseph Wagensomer, Frank Carl Jagisch | 1985-05-14 |
| 4516982 | Antimisting system for hydrocarbon fluids | Ilan Duvdevani, Dennis G. Peiffer, John A. Eckert | 1985-05-14 |
| 4512776 | Ionic polymer-polylactone compositions as flow improvers for oils and fuels | — | 1985-04-23 |
| 4511479 | Oil removal from water suspensions using ionic domain polymers | Everett J. Fuller | 1985-04-16 |
| 4510998 | Fluid loss additive for well drilling | Dennis G. Peiffer, Thad O. Walker | 1985-04-16 |