Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6988509 | Riser line shutoff valve | Robert Frampton, William D. Siska, Jr. | 2006-01-24 |
| 6666226 | Series/parallel relief valve for use with aircraft gaseous oxygen system | Lawrence Gill, Gary Thomasulo, William D. Siska, Jr. | 2003-12-23 |