Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6510945 | Tool free, easy-opening insulation package | Robert J. Allwein, Larry J. Weinstein, John A. Fry, Vern C. Plotts, Jo M. Teague | 2003-01-28 |
| 6170369 | Portable batt cutter | Larry J. Weinstein, Robert J. Allwein, John A. Fry, Vern C. Plotts, Jo M. Teague | 2001-01-09 |
| 6165305 | Pre-cut fibrous insulation for custom fitting wall cavities of different widths | Larry J. Weinstein, Robert J. Allwein, John A. Fry, Vern C. Plotts, Jo M. Teague | 2000-12-26 |
| 6141930 | Method of and article for insulating standard and nonstandard cavities and an insulated structure | Robert J. Allwein, Larry J. Weinstein | 2000-11-07 |
| 6083594 | Pre-cut fibrous insulation for custom fitting wall cavities of different widths | Larry J. Weinstein, Robert J. Allwein, John A. Fry, Vern C. Plotts, Jo M. Teague | 2000-07-04 |
| 4998597 | Insulated exhaust pipe attachment means | David W. Bainbridge | 1991-03-12 |