Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9066626 | Cutting board apparatus with collapsible tray | — | 2015-06-30 |
| 9049963 | Apparatus for treating food substances | — | 2015-06-09 |
| 8251357 | Apparatus for treating food substances | — | 2012-08-28 |
| 6286791 | Railroad spring wing frog with hold-open and shock dampening elements | Stephen R. Kuhn | 2001-09-11 |
| 6276642 | Railroad spring wing frog assembly | Stephen R. Kuhn | 2001-08-21 |
| 6224023 | Railroad spring frog assembly | Stephen R. Kuhn | 2001-05-01 |
| 6164602 | Railroad frog assembly with multi-position holdback | Stephen R. Kuhn, Ilia Petkov | 2000-12-26 |
| 6158697 | Railroad frog assembly with latch holdback | Stephen R. Kuhn | 2000-12-12 |
| 5971186 | Self-adjusting ring-riser and conduit box | Mark Young | 1999-10-26 |
| 5845881 | Railroad trackwork intersections | Stephen R. Kuhn, Joan Q. Xia, Thomas S. Baker, Jr. | 1998-12-08 |
| 5810298 | Railroad spring frog assembly | Stephen R. Kuhn | 1998-09-22 |
| 5653408 | Direct support frog assembly | Stephen R. Kuhn, Ronald Lee Lancaster, Ted A. Rittenhouse, Kenneth L. Schultz | 1997-08-05 |
| 5598993 | Pseudo heavy point frog assembly | Stephen R. Kuhn | 1997-02-04 |
| 5595361 | Wing rail hold-down | James A. Remington, Stephen R. Kuhn | 1997-01-21 |
| 5544848 | Railroad spring frog | Stephen R. Kuhn | 1996-08-13 |
| 5238186 | Guard rail assembly hook | James A. Remington | 1993-08-24 |
| 5236125 | Guard rail assembly support block | James A. Remington | 1993-08-17 |
| 5176318 | Guard rail assembly | James A. Remington | 1993-01-05 |