Issued Patents All Time
Showing 26–38 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5123702 | Interaction-high density stacking chair | — | 1992-06-23 |
| D321299 | Chair base | Christopher G. Estkowski, Lennard V. Lastuck | 1991-11-05 |
| 5040856 | Comestible storage compartment for refrigeration unit | Allen L. Wilkins, Philip F. Hottmann, Mark J. Blahnik | 1991-08-20 |
| D312011 | Chair base | Ludovic A. Perl | 1990-11-13 |
| D308815 | Caster with arcurate hood cover | Christopher G. Estkowski, Lennard V. Lastuck | 1990-06-26 |
| D304399 | Chair base with casters | Ludovic A. Perl, Robert M. Shane | 1989-11-07 |
| 4867512 | Adjustable storage module | Allen L. Wilkins, Philip F. Hottmann | 1989-09-19 |
| 4718726 | Chair seat tilt control | Michael H. Estkowski, Don E. Minor | 1988-01-12 |
| D283762 | Chair for use primarily by a draftsman | — | 1986-05-13 |
| D274483 | Seat | — | 1984-07-03 |
| D274204 | Arm rest for a business chair | — | 1984-06-12 |
| D273925 | Base for a business chair | — | 1984-05-22 |
| 4424555 | Concealable lighting fixture | Ronald H. Krubsack, Larry J. Krubsack | 1984-01-03 |