| 4820432 |
Lactone-modified, Mannich base dispersant additives useful in oleaginous compositions |
Antonio Gutierrez |
1989-04-11 |
$36,347,000 |
| 4788081 |
Biodegradable coatings of ionomer polymer |
Warren A. Thaler, Pacifico V. Manalastas, Evelyn N. Drake |
1988-11-29 |
$50,089,000 |
| H495 |
Drilling fluids based on hydrocarbon soluble polyampholytes |
Dennis G. Peiffer, Lawrence P. Sedillo, John C. Newlove |
1988-07-05 |
|
| 4751011 |
Hydrocarbon soluble complexes based on metal salts of polyolefinic dicarboxylic acids |
Alan A. Schetelich, Antonio Gutierrez, Robert R. Phillips |
1988-06-14 |
$75,003,000 |
| 4741956 |
Biodegradable coatings of ionomer polymer |
Warren A. Thaler, Pacifico V. Manalastas, Evelyn N. Drake |
1988-05-03 |
$106,751,000 |
| 4739834 |
Controlled hydraulic fracturing via nonaqueous solutions containing low charge density polyampholytes |
Dennis G. Peiffer, Lawrence P. Sedillo, John C. Newlove |
1988-04-26 |
$109,769,000 |
| 4738997 |
Asphalt blends based on polymer complexes |
Ilan Duvdevani, Dennis G. Peiffer |
1988-04-19 |
$46,360,000 |
| 4737534 |
Method for controlling viscosity of organic liquids and compositions thereof |
Robert R. Phillips, Dennis G. Peiffer, Ilan Duvdevani |
1988-04-12 |
$61,369,000 |
| 4710555 |
Novel polyampholyte compositions possessing high degrees of acid, base, or salt tolerance in solution |
Dennis G. Peiffer |
1987-12-01 |
$112,472,000 |
| H363 |
Dilatant behavior of a solution of a sulfonated polymer |
Ilan Duvdevani |
1987-11-03 |
|
| 4692268 |
Method for controlling viscosity of organic liquids and compositions |
Robert R. Phillips, L. Sherwood Minckler, David Yen-Lung Chung |
1987-09-08 |
$80,750,000 |
| 4683952 |
Fluid loss control in oil field cements |
Dennis G. Peiffer, Lawrence P. Sedillo, John C. Newlove |
1987-08-04 |
$41,754,000 |
| 4665115 |
Method for controlling viscosity of organic liquids and compositions |
Robert R. Phillips, Dennis G. Peiffer, Ilan Duvdevani |
1987-05-12 |
$35,479,000 |
| 4656204 |
Process for use of drag reduction agent in a hydrocarbon liquid |
Ilan Duvdevani, Ralph M. Kowalik, Dennis G. Peiffer |
1987-04-07 |
$36,040,000 |
| 4647603 |
Controlled gelation of hydrocarbon solutions containing interpolymer complexes |
Ilan Duvdevani, Dennis G. Peiffer |
1987-03-03 |
$32,061,000 |
| 4640945 |
Drag reduction with novel hydrocarbon soluble polyampholytes |
Dennis G. Peiffer, Ralph M. Kowalik |
1987-02-03 |
$79,685,000 |
| 4637882 |
Polyampholytes - high temperature viscosifiers for high ionic strength drilling fluids |
Dennis G. Peiffer, Kenneth W. Pober |
1987-01-20 |
$25,358,000 |
| 4627926 |
Thermally stable borehole fluids |
Dennis G. Peiffer, Lawrence P. Sedillo, John C. Newlove |
1986-12-09 |
$54,571,000 |
| 4626285 |
Fluid loss control in oil field cements |
Dennis G. Peiffer, Lawrence P. Sedillo, John C. Newlove |
1986-12-02 |
$24,572,000 |
| 4617337 |
Novel polymer compositions based on sulfonated ionomers and amine containing polymers |
Dennis G. Peiffer, Robert R. Phillips |
1986-10-14 |
$30,381,000 |
| 4615393 |
Hydrocarbon soluble polymer complexes useful as viscosifiers in fracturing operations |
Lawrence P. Sedillo, John C. Newlove, Dennis G. Peiffer |
1986-10-07 |
$102,149,000 |
| 4608425 |
High charge density polymeric complexes - viscosifiers for acid, base and salt (aqueous) solutions |
Dennis G. Peiffer |
1986-08-26 |
$31,910,000 |
| 4584339 |
Dilatant behavior of interpolymer complexes in aqueous solution |
Dennis G. Peiffer, Ilan Duvdevani |
1986-04-22 |
$27,032,000 |
| 4579671 |
Hydrocarbon soluble polymer complexes useful as viscosifiers in fracturing operations |
Dennis G. Peiffer, Lawrence P. Sedillo, John C. Newlove |
1986-04-01 |
$15,739,000 |
| 4579669 |
High temperature drilling fluids based on sulfonated thermoplastic polymers |
Thad O. Walker, Dennis G. Peiffer |
1986-04-01 |
$15,739,000 |
