| Company | Timeline | Status | |
| Stressline (Patents) Limited Director • Company Director | 16 Nov 1991←5 Years→31 Jul 1997 | Active | |
| Stressline Limited Director • Company Director | 16 Nov 1991←5 Years→31 Jul 1997 | Active | |
| John W.Hartley,Limited Director • Company Director | 16 Nov 1991←5 Years→31 Jul 1997 | Active | |
