Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6591501 | Utility knife | — | 2003-07-15 |
| 4668715 | Rapid solubilization of dry polymers | — | 1987-05-26 |
| 4521620 | Acrylamide synthesis from an oil-in-water emulsion containing acrylonitrile | — | 1985-06-04 |
| 4497927 | Tire tread adhesives | Wun Ten Tai | 1985-02-05 |
| 4413143 | Method of producing acrylamide from water-in-oil emulsion of acrylonitrile | John G. Premo | 1983-11-01 |
| 4405728 | Compositions for on-site mannich polymer process | Richard F. Krebs, Patrick J. Marek | 1983-09-20 |
| 4374964 | Method of preparing high molecular weight polyamines | Paul J. Harris | 1983-02-22 |
| 4287331 | Improved method of preparing high molecular weight polyamines | Paul J. Harris | 1981-09-01 |
| 4283507 | Hydrolysis of acrylamide polymers | Mary E. Bingham | 1981-08-11 |
| 4252706 | Method for precisely controlling the dissolution rate of high molecular weight water-soluble vinyl polymers | Alvin J. Frisque | 1981-02-24 |
| 4248304 | Large scale production of inexpensive flooding polymers for tertiary oil recovery | — | 1981-02-03 |
| 4233411 | Cationic polymeric composition for imparting wet and dry strength to pulp and paper | Edward G. Ballweber, Roger H. Jansma | 1980-11-11 |
| 4228057 | Grouting composition containing acrylate salts of iron | — | 1980-10-14 |
| 4217425 | Paper fiber additive containing polyacrylamide blended with glyoxal and polymeric diallyldimethyl ammonium chloride as a cationic regulator | Edward G. Ballweber, Roger H. Jansma | 1980-08-12 |
| 4212784 | Polymerization of water soluble polymers in water-in-oil latex form to produce emulsions containing high polymer solids levels and low oil levels | Mary E. Bingham | 1980-07-15 |
| 4189563 | Dry Mannich quaternary ammonia salt polymers | Edward G. Ballweber | 1980-02-19 |