Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4838738 | Pressure compensated weigh system | James A. Salter, Thomas Schmidt, Thomas S. Dewitz, Charles M. Arbore, Frederick M. H. J. Duysings +2 more | 1989-06-13 |
| 4834588 | Feed line-pulsed gas injection | James A. Salter, Thomas S. Dewitz, Hendricus A. Dirkse | 1989-05-30 |
| 4830545 | Feed line design | James A. Salter, Thomas S. Dewitz, Andrew M. Scott, Hendricus A. Dirkse | 1989-05-16 |