Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5143515 | Pump with seal purge heater | Clark S. Boster, Sankaraiyer Gopalakrishnan, Carl F. Reimers | 1992-09-01 | $6,251,000 |
| 4586719 | Mechanical seal | Joseph A. Marsi, Winfred J. Wiese, Lawrence I. Takumi, Clark S. Boster, Jerel E. Ellison +1 more | 1986-05-06 | $16,484,000 |