Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12127695 | Method and apparatus for displaying a shirt | — | 2024-10-29 |
| 11039505 | Method, equation, design, and construct to provide uniform heating for three-dimensional and various shaped heaters with improved busbar designs | — | 2021-06-15 |
| 10060419 | Battery powered vehicle propulsion system | Lael Rudd, Edmond K. Tajirian | 2018-08-28 |
| 8992151 | Tamper-resistant fastener | — | 2015-03-31 |
| 5394656 | Plastics rainwater guttering systems | — | 1995-03-07 |
| 5066104 | Liquid crystal electrical fault indicators | Manoochehr Mohebban, Wayne Montoya, Dennis C. Siden | 1991-11-19 |
| 4922242 | Apparatus exhibiting PTC behavior useful for displaying information | — | 1990-05-01 |
| 4646375 | Bed sheet fastener | — | 1987-03-03 |
| 4634213 | Connectors for power distribution cables | Peter Larsson, Thomas D. Ratzlaff | 1987-01-06 |
| 4628989 | Device for heat recovery | Thomas D. Ratzlaff, Dennis C. Siden | 1986-12-16 |
| D285648 | Combined gutter support and jointing bracket | David Wells | 1986-09-16 |
| D284832 | Gutter support bracket | — | 1986-07-29 |
| 4487676 | Anticorrosion anode with magnetic holddown | James P. Reed | 1984-12-11 |
| 4472135 | Flame coloring device | Thomas D. Ratzlaff, Donald A. Micheletti | 1984-09-18 |
| 4445787 | Surface temperature measuring device with reversible thermochromic film | — | 1984-05-01 |
| 4384906 | Flat sheet closure and method | Robert J. Molinari, Thomas D. Ratzlaff | 1983-05-24 |
| 4346921 | Drainage inspection chambers | Anthony Gill, John Gosden | 1982-08-31 |