Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| D449875 | Combination sink cover and cutting board | Lavada Fludd-Robinson | 2001-10-30 | |
| 4537457 | Connector for providing electrical continuity across a threaded connection | Albert P. Davis, Jr. | 1985-08-27 | $19,920,000 |
| 4448250 | Method of freeing a hollow tubular member | Claude E. Cooke, Jr. | 1984-05-15 | $23,788,000 |
| 4416494 | Apparatus for maintaining a coiled electric conductor in a drill string | Larry Watkins | 1983-11-22 | $22,698,000 |
| 4375310 | Self-locking cable connector | Jerry M. Speers, Adelber Barry | 1983-03-01 | $26,557,000 |
| 4271908 | Tracked cable guide assembly and method for storing conductor cable inside a drill pipe | Adelbert Barry, Jerry M. Speers | 1981-06-09 | $13,242,000 |
| 4250974 | Apparatus and method for detecting abnormal drilling conditions | Joe K. Heilhecker, Beldon A. Peters | 1981-02-17 | $11,094,000 |
| 4188191 | Process for reducing the sulfur content of coal and coal char and the ignition temperature of coal char | James R. Longanbach | 1980-02-12 | $16,741,000 |