Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11465226 | Methods and apparatus for welding work pieces having dissimilar compositions | Nicholas B. Rohrdanz | 2022-10-11 |
| 10500672 | Methods and apparatus for welding work pieces having dissimilar compositions | Nicholas B. Rohrdanz | 2019-12-10 |
| 8550117 | Seal assembly for a fluid pressure control device | Michael W. McCarty, Daniel M. Adams, Frederick W. Catron, Michael D. Frohwein | 2013-10-08 |
| 8011386 | Control valve having “C” seal | James L. Gossett, William V. Fitzgerald, Raymond W. Micheel, Donald Stroman Sanders, Wade Jonathon Helfer | 2011-09-06 |
| 7681594 | Control valve having “C” seal | James L. Gossett, William V. Fitzgerald, Raymond W. Micheel, Donald Stroman Sanders, Wade Jonathon Helfer | 2010-03-23 |
| 7578314 | Seal assembly for a fluid pressure control device | Michael W. McCarty, Daniel M. Adams, Frederick W. Catron, Michael D. Frohwein | 2009-08-25 |
| 7320340 | Fluid pressure reduction devices | Raymond W. Micheel | 2008-01-22 |
| 7303179 | Split packing follower for use with valves | Michel K. Lovell, Richard B. Eberhart | 2007-12-04 |
| 6851658 | Control valve trim and bore seal | William V. Fitzgerald, Cecil J. Eggleston, Jr., Wade Jonathon Helfer | 2005-02-08 |
| 4773687 | Wafer handler | Gary Reichl | 1988-09-27 |