Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6810693 | Continuous in-line system for producing high temperature glass fiber materials | David R. Hartman, David V. Stotler, Susan M. Pierik | 2004-11-02 |
| 4536202 | Drain bushing | Richard Perkins, Paul Turner | 1985-08-20 |
| 4518406 | Drain bushing | Richard Perkins, Hellmut I. Glaser | 1985-05-21 |