Issued Patents All Time
Showing 25 most recent of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12187985 | Alkaline cleaning compositions comprising a hydroxyphosphono carboxylic acid and methods of reducing metal corrosion | Jennifer Stokes, Carter M. Silvernail, Paul Frazer Schacht, Anthony W. Erickson | 2025-01-07 |
| 11198817 | Maleic anhydride homopolymer and maleic acid homopolymer and methods for preparing thereof, and non-phosphorus corrosion inhibitor and use thereof | Jasbir S. Gill, Santanu Banerjee, Anand Harbindu, Yinyin Tong | 2021-12-14 |
| 11149202 | Tetracarboxylic acid combinations for corrosion inhibition | Santanu Banerjee, Anand Harbindu, Jeffery M. Atkins, Jasbir S. Gill, Bingzhi Chen | 2021-10-19 |
| 11136425 | Mobility control polymers for enhanced oil recovery | William J. Andrews, Mingli Wei, Xiaojin Harry Li | 2021-10-05 |
| 11118099 | Polymer emulsions for use in crude oil recovery | Xiaojin Harry Li, William J. Andrews | 2021-09-14 |
| 11110393 | Enhanced injection of mercury oxidants | Nicholas R. Denny, John V. Meier, Daniel E. Schwarz | 2021-09-07 |
| 10793809 | Alkaline cleaning compositions comprising a hydroxyphosphono carboxylic acid and methods of reducing metal corrosion | Jennifer Stokes, Carter M. Silvernail, Paul Frazer Schacht, Anthony W. Erickson | 2020-10-06 |
| 10450500 | Thermally stable polymers for enhanced oil recovery | William J. Andrews, Ashish Dhawan | 2019-10-22 |
| 10442980 | Polymer emulsions for use in crude oil recovery | Xiaojin Harry Li, William J. Andrews | 2019-10-15 |
| 10435496 | Enhanced oil recovery using mobility control crosslinked polymers | William J. Andrews, Mingli Wei, Xiaojin Harry Li | 2019-10-08 |
| 10392573 | Method of controlling gas hydrates in fluid systems | Joseph R. Carlise, Olga E. S. Lindeman, Peter G. Conrad, Leonard M. Ver Vers | 2019-08-27 |
| 10323114 | Mobility control polymers for enhanced oil recovery | William J. Andrews, Mingli Wei, Xiaojin Harry Li | 2019-06-18 |
| 10047274 | Apparatus and method for inverting polymer latices | Zachary Wilson Logan, William J. Andrews, Kerry Charles Brinkman, Warren T. Gillenwater, Heinrich E. Bode +1 more | 2018-08-14 |
| 9534300 | Water soluble substituted imidazolines as corrosion inhibitors for ferrous metals | Jasbir S. Gill, Santanu Banerjee, Anand Harbindu | 2017-01-03 |
| 9512568 | Methods for increasing retention and drainage in papermaking processes | Brett Brotherson, Xiaojin Harry Li, William J. Andrews, Mingli Wei | 2016-12-06 |
| 9290851 | Specific 3-alkylamino-2-hydroxysuccinic acids and their salts as corrosion inhibitors for ferrous metals | Jasbir S. Gill, Santanu Banerjee, Anand Harbindu | 2016-03-22 |
| 8530597 | High molecular weight compact structured polymers, methods of making and using | Pious Kurian, Michael R. St. John, Winston Su, Jeffrey R. Cramm | 2013-09-10 |
| 8247597 | Continuous production of DMAEA quaternary salts | Barbara E. Fair, Leonard M. Ver Vers, Larry E. Brammer, Jr., Charles J. Holada, Cheng-Sung Huang +1 more | 2012-08-21 |
| 7928042 | Composition and method for recovering hydrocarbon fluids from a subterranean reservoir | Kin-Tai Chang | 2011-04-19 |
| 7897546 | Composition and method for recovering hydrocarbon fluids from a subterranean reservoir | Brett Showalter, Manian Ramesh, Joseph Paul Street, Kin-Tai Chang, Pious Kurian | 2011-03-01 |
| 7829738 | Production of N,N-dialklylaminoethyl (meth)acrylates | Larry E. Brammer, Jr., Barbara E. Fair, Cheng-Sung Huang, Linh Quach, Leonard M. Ver Vers | 2010-11-09 |
| 6572789 | Corrosion inhibitors for aqueous systems | Bo Yang, John D. Morris | 2003-06-03 |
| 6235152 | Process for treating an aqueous liquid containing forming calcium scale salts by adding a copolymer of 1,2-dihdroxy-3-butene antiscalant | Prasad Y. Duggirala, John D. Morris, Steven John Severtson | 2001-05-22 |
| 6232419 | Process for the inhibition of scale in harsh systems and novel antiscalants for same | Prasad Y. Duggirala, John D. Morris, Steven John Severtson | 2001-05-15 |
| 6146495 | Kraft process for the production of wood pulp by adding a copolymer of 1,2-dihydroxy-3-butene antiscalant | Prasad Y. Duggirala, John D. Morris, Steven John Severtson | 2000-11-14 |