Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7704750 | Visual spill indicator | Richard H. Hall | 2010-04-27 |
| 6083380 | Fluid coalescing method and apparatus | Theodore W. Selby | 2000-07-04 |
| D419652 | Stand-pipe assembly unit for a containment basin which holds a sorbent material containing cartridge and which can hold a silt-collecting sock over its top tray | Richard H. Hall, Nicolo Flor | 2000-01-25 |
| D415831 | Disc-shaped container which can hold absorbent material | Richard H. Hall, Nicolo Flor | 1999-10-26 |
| D400973 | Disc-shaped container which can hold sorbent material | Richard H. Hall, Nicolo Flor | 1998-11-10 |
| D400974 | Stool-shaped container, which can hold silt sock, sorbent material disc, locking and sealing frame | Richard H. Hall, Nicolo Flor | 1998-11-10 |