Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6490888 | Semi-convective forced air method for tempering low “E” coated glass | Kenneth Friedel | 2002-12-10 |
| 5951734 | Semi-convective forced air system for tempering low E coated glass | Kenneth Friedel | 1999-09-14 |