Propst; Robert L.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Propst; Robert L..The latest application filed is for "floor system".
- Propst; Robert L. - Redmond WA
- Propst; Robert L. - Bellevue WA
- Propst; Robert L. - Ann Arbor MI
- Propst; Robert L. - Bellvue WA
| Patent | Date |
|---|---|
| Floor system Grant 5,333,423 - Propst August 2, 1 | 1994-08-02 |
| Cart assembly Grant 5,069,466 - Propst December 3, 1 | 1991-12-03 |
| Building enclosure system and method Grant 5,012,625 - Propst May 7, 1 | 1991-05-07 |
| Building enclosure system and method Grant 4,899,510 - Propst February 13, 1 | 1990-02-13 |
| Office seating with activity features Grant 4,452,449 - Propst June 5, 1 | 1984-06-05 |
| Locking system using codable magnetic cards Grant 4,409,806 - Propst October 18, 1 | 1983-10-18 |
| Electrical energy supply system for work stations in a space divider system Grant 4,382,648 - Propst , et al. May 10, 1 | 1983-05-10 |
| Stacking pallet Grant 4,368,675 - Propst , et al. January 18, 1 | 1983-01-18 |
| Free-standing space divider assembly with acoustic upper end border Grant 4,356,674 - Propst , et al. November 2, 1 | 1982-11-02 |
| System for pulpwood harvesting and delivery Grant 4,354,539 - Propst October 19, 1 | 1982-10-19 |
| Vehicle towing system Grant 4,351,541 - Propst , et al. September 28, 1 | 1982-09-28 |
| Stacking pallet Grant 4,290,369 - Propst , et al. September 22, 1 | 1981-09-22 |
| Lightweight stackable pallet Grant 4,279,204 - Propst July 21, 1 | 1981-07-21 |
| Combination acoustic conditioner and light fixture Grant 4,280,019 - Propst , et al. July 21, 1 | 1981-07-21 |
| Apparatus and method for harvesting trees Grant 4,273,168 - Propst June 16, 1 | 1981-06-16 |
| Under the wall wiring system with improved cover members Grant 4,257,203 - Propst , et al. March 24, 1 | 1981-03-24 |
| Energy distribution system for enclosed areas Grant 4,255,611 - Propst , et al. March 10, 1 | 1981-03-10 |
| Energy supply system including flat power cables for a space divider system Grant 4,235,495 - Propst , et al. November 25, 1 | 1980-11-25 |
| Under the wall energy supply system for a space divider system Grant 4,231,630 - Propst , et al. November 4, 1 | 1980-11-04 |
| Material handling system Grant 4,217,073 - Propst August 12, 1 | 1980-08-12 |
| Combination acoustic conditioner and light fixture Grant 4,214,298 - Propst , et al. July 22, 1 | 1980-07-22 |
| Sanitary caster Grant 4,184,227 - Propst , et al. January 22, 1 | 1980-01-22 |
| Storage locker Grant 4,153,313 - Propst May 8, 1 | 1979-05-08 |
| Steering apparatus for a trailer vehicle Grant 4,134,601 - Propst January 16, 1 | 1979-01-16 |
| Masking sound generator Grant 4,052,564 - Propst , et al. October 4, 1 | 1977-10-04 |
| Material handling apparatus Grant 4,052,084 - Propst October 4, 1 | 1977-10-04 |
| Power supply for movable office unit Grant 4,043,626 - Propst , et al. August 23, 1 | 1977-08-23 |
| Electrically wired floor construction Grant 3,984,621 - Propst October 5, 1 | 1976-10-05 |
| Animal marking apparatus Grant 3,952,438 - Propst , et al. April 27, 1 | 1976-04-27 |
| Laboratory module system Grant 3,920,299 - Propst , et al. November 18, 1 | 1975-11-18 |
| Universal mounting for various signage Grant 3,883,972 - Propst , et al. May 20, 1 | 1975-05-20 |
| Self-making Bed Grant 3,855,655 - Propst December 24, 1 | 1974-12-24 |
| Pediatric Bed Grant 3,848,278 - Propst November 19, 1 | 1974-11-19 |
| Stackable Drawer And Cover Grant 3,826,550 - Propst , et al. July 30, 1 | 1974-07-30 |
| Timber Harvesting Machine Grant 3,797,540 - Propst March 19, 1 | 1974-03-19 |
| Animal Marking Apparatus And Method Grant 3,788,276 - Propst , et al. January 29, 1 | 1974-01-29 |
| Shock Mount For Caster Sockets Grant 3,768,116 - Propst , et al. October 30, 1 | 1973-10-30 |
| Pediatric Bed Grant 3,763,507 - Propst October 9, 1 | 1973-10-09 |
| Stackable Drawer And Cover Grant 3,752,547 - Propst , et al. August 14, 1 | 1973-08-14 |
| Cart Grant 3,734,526 - Propst , et al. May 22, 1 | 1973-05-22 |
| Drawer, Tray-shelf And Supporting Structures Therefor Grant 3,716,282 - Propst , et al. February 13, 1 | 1973-02-13 |
| Locker Grant 3,712,697 - Kelley , et al. January 23, 1 | 1973-01-23 |
| Structural Support System For Drawers And The Like Grant 3,712,698 - Propst , et al. January 23, 1 | 1973-01-23 |
| Method And Apparatus For Harvesting Trees Grant 3,707,175 - Propst December 26, 1 | 1972-12-26 |
| Furniture Construction Grant 3,674,230 - Propst July 4, 1 | 1972-07-04 |
| Desk With Slidable Top Grant 3,574,434 - Propst , et al. April 13, 1 | 1971-04-13 |
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