| Company | Timeline | Status | |
| Intellectual Property Outsourcing Trustee Limited Director • Patent Attorney | 16 Oct 2024←1 Year→Current | Active | |
| Harrison Ip Limited Director • Patent Attorney | 1 May 2008←5 Years→30 Apr 2013 | Active | |
| Harrison Ip Limited Secretary • Patemt Attorney | 1 Oct 2006←5 Years→1 May 2012 | Active | |
| Aesseal Plc Director • I P Director | 2 May 2006←1 Year 3 Months→29 Aug 2007 | Active | |
PCT Shareholders Limited Director • Company Director | 14 May 2001←9 Months→20 Feb 2002 | Dissolved | |
| Y.C.R. Scientific Developments Limited Director • Company Director | 4 Apr 2001←8 Years→24 Feb 2010 | Active | |
