Patents per Year
Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5183113 | Down-hole decelerators | Robert J. Smith | 1993-02-02 | $4,534,000 |
| 5048619 | Down-hole bearing assemblies | David P. McRobbie | 1991-09-17 | $6,291,000 |
| 5047635 | Down-hole probe assemblies | Keith Lathan | 1991-09-10 | $6,615,000 |
| 4974691 | Down-hole bearing assemblies | David P. McRobbie | 1990-12-04 | $7,148,000 |
| 4855870 | Assemblies for supporting electrical circuit boards within tubes | Michael K. Russell, Donald L. Wesenberg | 1989-08-08 | $13,262,000 |
| 4694555 | Assemblies for supporting electrical circuit boards within tubes and method of using same | Michael K. Russell, Donald L. Wesenberg | 1987-09-22 | $8,079,000 |