Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5687986 | Attachment device for an inflatable protective cushion | James M. Nelsen, Kenneth W. Gwinn | 1997-11-18 |
| 5607182 | Structurally efficient inflatable protective device | James M. Nelsen, Larry D. Whinery, Kenneth W. Gwinn, Donald D. McBride, Joseph P. Holder +1 more | 1997-03-04 |