Issued Patents All Time
Showing 51–74 of 74 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5603454 | Water display pendant water dropper | William C. Knapp | 1997-02-18 |
| 5553779 | Air powered water display nozzle unit | Alan S. Robinson | 1996-09-10 |
| 5480094 | Air powered water display nozzle unit | Alan S. Robinson | 1996-01-02 |
| 5363577 | Alphanumeric and graphic water display | Alan S. Robinson | 1994-11-15 |
| 5340024 | Numerically controlled water jet display pool | Alan S. Robinson | 1994-08-23 |
| 5219315 | Water effects enhanced motion base simulator ride | Alan S. Robinson | 1993-06-15 |
| 5115973 | Water displays | Alan S. Robinson | 1992-05-26 |
| 5078320 | Water displays | Alan S. Robinson | 1992-01-07 |
| 5044554 | Hydraulic jump water display | Alan S. Robinson | 1991-09-03 |
| D316574 | Water ball game control valve | Alan S. Robinson, John Werner | 1991-04-30 |
| 4978066 | Fast acting airpowered water displays | Alan S. Robinson | 1990-12-18 |
| D312665 | Water ball game base | Alan S. Robinson, John Werner | 1990-12-04 |
| 4955540 | Water displays | Alan S. Robinson | 1990-09-11 |
| 4946164 | Suspended ball water toy | Alan S. Robinson, John Werner | 1990-08-07 |
| 4892250 | Dynamic fountain displays and methods for creating the same | Alan S. Robinson | 1990-01-09 |
| 4889283 | Apparatus and method for stream diverter | Alan S. Robinson | 1989-12-26 |
| 4872611 | Venturi-less water nozzle | Alan S. Robinson | 1989-10-10 |
| 4858826 | Colored flame water fountain illumination system | Alan S. Robinson | 1989-08-22 |
| 4852801 | Airpowered water displays | Alan S. Robinson | 1989-08-01 |
| 4817312 | User activated fountain display | Alan S. Robinson | 1989-04-04 |
| 4795092 | Laminar flow nozzle | — | 1989-01-03 |
| 4715136 | Method and apparatus for creating a kinetic water display | Alan S. Robinson | 1987-12-29 |
| 4661893 | Underwater lighting system | Alan S. Robinson | 1987-04-28 |
| 4182363 | Liquid level controller | — | 1980-01-08 |