Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9315318 | Method of assembling and disassembling a storage tank | Yuqin Shan, Brad Warner, James Andrew Mills | 2016-04-19 |
| 9033179 | Water tank | Yuqin Shan, Nhi Y Le | 2015-05-19 |
| 8858120 | Liquid containment system | John Mascarenhas, Michael J. Fell | 2014-10-14 |
| 8220207 | Roof structure for a grain bin | Yuqin Shan | 2012-07-17 |
| 7686188 | Drain-back spout fitment closure with drip-less pour tip | Matthew E. Stebick, Robert J. Smith, Brian Masterson | 2010-03-30 |
| 7254009 | Enclosed electrical switchgear and method of manufacture | — | 2007-08-07 |
| 7136278 | Enclosed electrical switchgear and method of manufacture | — | 2006-11-14 |
| 5211405 | Dart board game cabinet | Richard B. Shelton | 1993-05-18 |
| 4979739 | Ball return control apparatus | Richard B. Shelton, Ullrich K. A. Kunnecke, Robert J. Brejcha, Edward K. Miguel | 1990-12-25 |
| 4726586 | Pool ball return control apparatus | Richard B. Shelton | 1988-02-23 |