Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5086841 | Method of reducing circulation fluid loss using water absorbing polymer | Henry A. Grichuk | 1992-02-11 |
| 5034139 | Polymer composition comprising phosphorous-containing gelling agent and process thereof | Henry A. Grichuk | 1991-07-23 |
| 4208392 | Two-step process for removing boron compounds from aqueous solutions of magnesium chloride | Ronald J. Allain, David G. Braithwaite | 1980-06-17 |
| 4201758 | Boron removal from ethylene glycol-magnesium chloride solutions | Ronald J. Allain, David G. Braithwaite | 1980-05-06 |