Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5669900 | Spunbond loop material for hook and loop fastening systems | Leon E. Chambers, Jr., Robert G. Geer, Jay Sheldon Shultz | 1997-09-23 |
| 5538019 | Spunbond cigarette filter | Leon E. Chambers, Jr., Robert G. Geer | 1996-07-23 |
| 4978364 | Triiodide-phosphoric acid stain and method for cellulose fiber evaluation | Hilary Walker | 1990-12-18 |
| 4961415 | Controlled draft and efficiency filter element for smoking articles | Fred R. Radwanski, Donald F. Durocher, Leon E. Chambers, Jr., Loyd G. Kasbo, William F. Cartwright +1 more | 1990-10-09 |
| 4903714 | Smoking article with improved mouthend piece | Russell D. Barnes, Gary R. Shelar, William F. Cartwright, Leon E. Chambers, Jr., Donald F. Durocher +3 more | 1990-02-27 |
| 4805644 | Sidestream reducing cigarette paper | Vladimir Hampl, Jr., Robert D. Fields | 1989-02-21 |
| 4779631 | Wrappers for specialty smoking devices | Donald F. Durocher, Carmen P. DiGrigoli, Loyd G. Kasbo | 1988-10-25 |