Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6578339 | Sectional tower with intermediate legs | — | 2003-06-17 |
| 6557312 | Prefabricated-building tower foundation | — | 2003-05-06 |
| 6115004 | Antenna support system | — | 2000-09-05 |
| 6108996 | Apparatus and method for retrofitting towers exchanger | — | 2000-08-29 |
| 5842928 | Amusement park swing ride | — | 1998-12-01 |
| 5452774 | Endless roller chain drive with interlocking traction rail | Link H. Davis | 1995-09-26 |
| 5200759 | Telecommunications tower equipment housing | — | 1993-04-06 |
| 5025606 | Guy control system for extensible mast | Fred R. Hickman, Wesley Neil Ludwig | 1991-06-25 |
| 4991367 | Apparatus and method for reinforcing a wooden pole | — | 1991-02-12 |
| 4981005 | Tapered pole and method of making | — | 1991-01-01 |
| 4866893 | Extensible mast | — | 1989-09-19 |
| 4850161 | Extensible mast support system | — | 1989-07-25 |
| 4694630 | Tower and method of constructing a tower | — | 1987-09-22 |
| 4625475 | Extensible mast | — | 1986-12-02 |