| Number | Name | Date | Kind |
|---|---|---|---|
| 3017219 | Mallet | Jun 1962 | A |
| 3093411 | Mallet | Jun 1963 | A |
| 3336076 | Malitte | Aug 1967 | A |
| 4453764 | Hennessy | Jun 1984 | A |
| 4659099 | Malone | Apr 1987 | A |
| 4779922 | Cooper | Oct 1988 | A |
| 5104073 | VanBeek et al. | Apr 1992 | A |
| 5161812 | DeWeese | Nov 1992 | A |
| 5311210 | O'Brien et al. | May 1994 | A |
| 5452950 | Crenshaw et al. | Sep 1995 | A |
| 5490710 | Dearing et al. | Feb 1996 | A |
| 5893607 | Trimnell | Apr 1999 | A |
| 6095607 | Wenzel | Aug 2000 | A |
| 6135548 | McGuire | Oct 2000 | A |
| Entry |
|---|
| “Neutral Posture® Sit/Stand Workstation for Office or Industry”, Neutral Posture Ergonomics, Inc. © (P11,6/99). |
| “Providing High-Quality Products to Enhance Your Comfort, Safety and Productivity”, Ergonomic Design Inc. © 1999. |
| “Give Yourself C.P.R. Comfort Productivity Risk Reduction”, Cat Trak, Inc. © 1999. |