Issued Patents All Time
Showing 51–68 of 68 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4967846 | Progressively inflated packers | — | 1990-11-06 |
| 4897139 | Method of producing progressively inflated packers | — | 1990-01-30 |
| 4781249 | Progressively inflated packers | — | 1988-11-01 |
| 4744421 | Inflatable packer systems | William T. Bell, Bob Barker | 1988-05-17 |
| RE32438 | Well packer valve arrangement | Robert E. Snyder | 1987-06-16 |
| 4655286 | Method for cementing casing or liners in an oil well | — | 1987-04-07 |
| RE32345 | Packer valve arrangement | — | 1987-02-03 |
| 4607698 | Pipe configuration compatible with CBL | — | 1986-08-26 |
| 4606406 | Inflatable packer compatible with CBL | — | 1986-08-19 |
| 4577695 | Sequential inflatable packer | — | 1986-03-25 |
| 4527625 | Packer valve arrangement | Ernest O. Sodich | 1985-07-09 |
| 4492383 | Inflatable well bore packer with pressure equalized rib cavity | — | 1985-01-08 |
| 4420159 | Packer valve arrangement | — | 1983-12-13 |
| 4415205 | Triple branch completion with separate drilling and completion templates | William A. Rehm, Donald W. Dareing | 1983-11-15 |
| 4402517 | Well packer valve arrangement | Robert E. Snyder | 1983-09-06 |
| 4402551 | Method and apparatus to complete horizontal drain holes | Robert E. Snyder, William C. Larson, Donald W. Dareing | 1983-09-06 |
| 4396230 | Multiple branch well containing one producer and one injector well | Donald W. Dareing, William C. Larson, Robert E. Snyder | 1983-08-02 |
| 4396075 | Multiple branch completion with common drilling and casing template | Donald W. Dareing, Robert E. Snyder, William C. Larson | 1983-08-02 |