US6656885B2
|
|
Anhydride-modified chitosan, method of preparation thereof, and fluids containing same
|
US6291404B2
|
|
Viscosified aqueous chitosan-containing well drilling and servicing fluids
|
US6358889B2
|
|
Viscosified aqueous chitosan-containing well drilling and servicing fluids
|
US6277792B1
|
|
Viscosified aqueous fluids and viscosifier therefor
|
US6258755B1
|
|
Chitosan-containing well drilling and servicing fluids
|
US5916849A
|
|
Polysaccharide-containing well drilling and servicing fluids
|
US5701674A
|
|
Shaving cream dispensing razor
|
US5230305A
|
|
Scoopable cat litter and method
|
US5188064A
|
|
Clumping cat litter
|
US5147852A
|
|
Reduction of seepage losses in well working compositions
|
US5076944A
|
|
Seepage loss reducing additive for well working compositions and uses thereof
|
US5207830A
|
|
Lightweight particulate cementitious materials and process for producing same
|
US5071575A
|
|
Well working compositions, method of decreasing the seepage loss from such compositions, and additive therefor
|
US5004553A
|
|
Well working compositions, method of decreasing the seepage loss from such compositions, and additive therefor
|
US4925616A
|
|
Method of protecting a cased pipeline from corrosion
|
US4597878A
|
|
Polyphenolic acid adducts
|
US4569799A
|
|
Process for making organophilic humate derivatives
|
US4507210A
|
|
Method of determining the optimum aqueous composition for preventing _the swelling and dispersion of subterranean formation particles
|
US4464274A
|
|
Organophilic clay suspending agents
|
US4435564A
|
|
Compositions and processes for using hydroxyethyl cellulose in heavy brines
|