Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6461999 | Starch-containing lubricant systems for oil field applications | George F. Fanta, Kenneth Eskins, Frederick C. Felker, Selim Erhan | 2002-10-08 |
| 6325149 | Method of decreasing the loss of fluid during workover and completion operations | James W. Dobson, Jr., Jesse Clark Harrison, III | 2001-12-04 |
| 5776865 | Emulsifiable oil | Maria Manuel De Castro Loureiro Barreto Rosa, Arend Kuindert Van Helden | 1998-07-07 |
| 5352766 | Preparation of copolymers | Philip De Smedt, Jan Mulder | 1994-10-04 |
| 5062970 | Surfactant composition | Nicolaas Cornelis Maria Beers, Sebastianus P. F. M. Roefs | 1991-11-05 |
| 5061386 | Surfactant composition | Jan V. Schaik | 1991-10-29 |
| 4693311 | Steam foam process | Paulus P. M. Keijzer | 1987-09-15 |
| 4348244 | Lubricating compositions for primary backing fabrics used in the manufacture of tufted textile articles | John D. Shepley | 1982-09-07 |
| 4288331 | Lubricating compositions for primary backing fabrics used in the manufacture of tufted textile articles | John D. Shepley | 1981-09-08 |