Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D417562 | Modular seating system | Bernard D. Katzanek | 1999-12-14 |
| D349609 | Modular seating unit | Bernard D. Katzanek | 1994-08-16 |
| D312013 | Chair base | Bernard D. Katzanek | 1990-11-13 |
| D279153 | Armrest | Bernard D. Katzanek | 1985-06-11 |
| D279154 | Combined seat and backrest unit | Bernard D. Katzanek | 1985-06-11 |
| D279155 | Combined seat and backrest unit | Bernard D. Katzanek | 1985-06-11 |
| D277916 | Arm rest | Bernard D. Katzanek | 1985-03-12 |
| D276956 | Chair | Bernard D. Katzanek | 1985-01-01 |
| D275158 | Chair | Bernard D. Katzanek | 1984-08-21 |
| 4466665 | Chair having adjsutable, cantilevered lumbar-supporting arm | Bernard D. Katzanek | 1984-08-21 |
| D275054 | Stool | Bernard D. Katzanek | 1984-08-14 |
| D275050 | Chair | Bernard D. Katzanek | 1984-08-14 |
| D274958 | Stool | Bernard D. Katzanek | 1984-08-07 |
| D274869 | Chair | Bernard D. Katzanek | 1984-07-31 |
| D274484 | Stool | Bernard D. Katzanek | 1984-07-03 |
| D270308 | Table | Bernard D. Katzanek | 1983-08-30 |
| D264027 | Chair | Bernard D. Katzanek | 1982-04-27 |
| D262421 | Chair | Bernard D. Katzanek | 1981-12-29 |
| D262163 | Chair | Bernard D. Katzanek | 1981-12-08 |
| D262164 | Chair | Bernard D. Katzanek | 1981-12-08 |
| D262166 | Chair | Bernard D. Katzanek | 1981-12-08 |
| D261954 | Chair | Bernard D. Katzanek | 1981-11-24 |
| D261955 | Chair | Bernard D. Katzanek | 1981-11-24 |
| D261953 | Chair | Bernard D. Katzanek | 1981-11-24 |