Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4904510 | Scorch resistance perlite board | Narikottile G. Nath, Rainer Gruber | 1990-02-27 |
| 4766024 | Roofing system | Narikottile G. Nath, Kenneth N. Meehan | 1988-08-23 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4904510 | Scorch resistance perlite board | Narikottile G. Nath, Rainer Gruber | 1990-02-27 |
| 4766024 | Roofing system | Narikottile G. Nath, Kenneth N. Meehan | 1988-08-23 |