Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7895724 | Color-coded method for tools | — | 2011-03-01 |
| 4501227 | Method and apparatus for rearing post-larvae shrimp | Charles Dugan | 1985-02-26 |
| 4495891 | Method and apparatus for rearing aquatic animals | Charles Dugan | 1985-01-29 |
| 4469048 | Method and apparatus for rearing post-larvae shrimp | Charles Dugan | 1984-09-04 |
| 4467743 | Method and apparatus for rearing post-larvae shrimp | Charles Dugan | 1984-08-28 |
| 4440109 | Method and apparatus for rearing post-larvae shrimp | Charles Dugan | 1984-04-03 |
| 4392454 | Apparatus and method for rearing shrimp | Charles Dugan | 1983-07-12 |
| 4389974 | Apparatus and method for rearing shrimp | Charles Dugan | 1983-06-28 |
| 4382423 | Method and apparatus for rearing aquatic animals | Charles Dugan | 1983-05-10 |
| 4285298 | Method and apparatus for rearing post-larvae shrimp | Charles Dugan | 1981-08-25 |
| 4250835 | Apparatus and method for rearing shrimp | Charles Dugan | 1981-02-17 |
| 4249480 | Apparatus and method for rearing shrimp | Charles Dugan | 1981-02-10 |