Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5379559 | Semisubmersible building | — | 1995-01-10 |
| 5322390 | Underwater tunnel and an underwater mooring apparatus to moor the underwater tunnel | — | 1994-06-21 |
| 5294211 | Floating wave absorber | — | 1994-03-15 |
| 5049004 | Underwater building and constructing method thereof | — | 1991-09-17 |
| 5025512 | Flooring apparatus for pool or the like | — | 1991-06-25 |
| 4937896 | Floor-level adjusting device for a pool | — | 1990-07-03 |
| 4831672 | Floor-level adjusting device for a pool | — | 1989-05-23 |