Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6711863 | Edge cut to increase effective width of insulation sheet and method of forming the same | Judith A. Wunsch | 2004-03-30 |
| 6378258 | Edge cut to increase effective width of insulation sheet and method of forming the same | Judith A. Wunsch | 2002-04-30 |
| 5194206 | Process for the manufacture of ceiling tile | John D. Koch, Mark R. Glassley, C. F. Owen | 1993-03-16 |
| 5076985 | Method for forming ceiling tile | John D. Koch, Mark R. Glassley | 1991-12-31 |
| 4634622 | Lightweight asphalt based building materials and process for making same | Kenneth L. Jenkins, Stanley C. Suhaka, Rick Lee Dolin, Allan R. LaRoche, Robert E. Hodgson +3 more | 1987-01-06 |
| 4416071 | Apparatus for rapid annealing of refractory fiber bodies | Romain E. Loeffler, deceased | 1983-11-22 |
| 4384813 | Shingle stacker with shingle inverting feature | Douglas D. Smith | 1983-05-24 |
| 4294878 | Process for rapid annealing of refractory fiber bodies and laminated body produced by process | Romain E. Loeffler, deceased | 1981-10-13 |
| 4233100 | Method and apparatus for manufacturing a laminated shingle | Douglas D. Smith, Romain E. Loeffler, deceased | 1980-11-11 |
| 4218962 | Apparatus for forming thermal insulation blocks | Douglas D. Smith | 1980-08-26 |