Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5782196 | Sealing openings in hulls of vessels | Christopher Cunningham, Marcel Pierre Joseph Gaudreau, Axel Michael Sigmar | 1998-07-21 |
| 5562064 | Apparatus and method for assessing damage and patching openings in hulls of marine vessels | Christopher Cunningham, Marcel Pierre Joseph Gaudreau, Axel Michael Sigmar | 1996-10-08 |