Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4990543 | Lightweight flexible inide foam and method of producing same | David Gerald Wernsing, Royce M. Feagans, Daniel Elden Near | 1991-02-05 |
| 4980387 | Lightweight flexible imide foam and method of producing same | David Gerald Wernsing, Royce M. Feagans, Daniel Elden Near | 1990-12-25 |
| 4354891 | Method of curing polyester resin in the presence of rubber | Charles Lostak, Manfred Klepetar | 1982-10-19 |
| 4329193 | Method of making a coupling for rigid pressure pipe | Charles Lostak, Robert W. Heisler, Joseph P. Ferraro, Henry J. Kazienko | 1982-05-11 |
| 4319950 | Mandrel for making a coupling for rigid pressure pipe | Charles Lostak, Robert W. Heisler, Joseph P. Ferraro, Henry J. Kazienko | 1982-03-16 |