| 5407475 |
Thermally stable thiosulfate hydroxyethylcellulose suspension |
Jose Zapico |
1995-04-18 |
| 4892589 |
Composition comprising water-soluble, nonionic hydrophobically modified hydroxyethyl cellulose and water-soluble, nonionic hydroxyethyl cellulose |
William J. Kirkland, William C. McLachlan |
1990-01-09 |
| 4853437 |
Water- and caustic-insoluble, inswellable, fibrous, particulate crosslinked polymer |
Arjun C. Sau |
1989-08-01 |
| 4784693 |
Cementing composition and aqueous hydraulic cementing solution comprising water-soluble, nonionic hydrophobically modified hydroxyethyl cellulose |
William J. Kirkland, William C. McLachlan |
1988-11-15 |
| 4743384 |
Carboxymethyl guar based drilling fluids |
Cheng Lu, Robert R. Pas |
1988-05-10 |
| 4604217 |
Gelled aqueous compositions |
Shao-Tang Sun |
1986-08-05 |
| 4523010 |
Dihydroxypropyl mixed ether derivatives of cellulose |
Thomas G. Majewicz, Albert R. Reid |
1985-06-11 |