Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7345010 | Compositions for drilling fluids useful to provide flat temperature rheology to such fluids over a wide temperature range and drilling fluids containing such compositions | Jeffrey Thompson, David Dino, Mark Matyi | 2008-03-18 |
| 6171388 | Lightweight gypsum composition | — | 2001-01-09 |
| 5008444 | Process for the production of substituted acryloyloxyhydroxypropyltrialkylammonium chloride | William Chiang, Michael Paul Popule | 1991-04-16 |
| 4808668 | Carboxylate polymers and processes for their preparation and use | John V. Carioti | 1989-02-28 |