Issued Patents All Time
Showing 25 most recent of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5333423 | Floor system | — | 1994-08-02 |
| 5090170 | Building enclosure system | — | 1992-02-25 |
| 5069466 | Cart assembly | — | 1991-12-03 |
| 5012625 | Building enclosure system and method | — | 1991-05-07 |
| 4899510 | Building enclosure system and method | — | 1990-02-13 |
| 4843868 | Cement mix analyzing system | — | 1989-07-04 |
| 4741201 | Cement mix analyzing system | — | 1988-05-03 |
| 4452449 | Office seating with activity features | — | 1984-06-05 |
| 4409806 | Locking system using codable magnetic cards | — | 1983-10-18 |
| 4382648 | Electrical energy supply system for work stations in a space divider system | Travis M. Randolph | 1983-05-10 |
| 4368675 | Stacking pallet | Terry Mitchell | 1983-01-18 |
| 4356674 | Free-standing space divider assembly with acoustic upper end border | Michael A. Wodka, Ronald R. Hodges | 1982-11-02 |
| 4354539 | System for pulpwood harvesting and delivery | — | 1982-10-19 |
| 4354611 | Top opening receptacle for trash collection and management systems | Paul L. Propst | 1982-10-19 |
| 4351541 | Vehicle towing system | William B. Raftery | 1982-09-28 |
| 4290369 | Stacking pallet | William B. Raftery | 1981-09-22 |
| 4285624 | Trash collection and management system for an office environment | Paul L. Propst | 1981-08-25 |
| 4279204 | Lightweight stackable pallet | — | 1981-07-21 |
| 4280019 | Combination acoustic conditioner and light fixture | Travis M. Randolph, Theodore M. Reyda | 1981-07-21 |
| 4277079 | Material handling system | Paul L. Propst | 1981-07-07 |
| 4273168 | Apparatus and method for harvesting trees | — | 1981-06-16 |
| 4261433 | Acoustical-reflective ceiling construction | — | 1981-04-14 |
| 4257203 | Under the wall wiring system with improved cover members | Michael A. Wodka, Thomas J. Newhouse | 1981-03-24 |
| 4255611 | Energy distribution system for enclosed areas | Michael A. Wodka | 1981-03-10 |
| 4235495 | Energy supply system including flat power cables for a space divider system | Michael A. Wodka | 1980-11-25 |