| Company | Timeline | Status | |
Central England Patent & Trademark Attorneys Limited Director • Chartered Patent Attorney | 31 Jan 2012←5 Years→23 May 2017 | Active | |
| Hepworth Browne Limited Director • Chartered Patent Attorney | 28 Sep 2006←4 Months→21 Feb 2007 | Active | |
| Hepworth Browne Limited Secretary • Unreported | 28 Sep 2006←4 Months→21 Feb 2007 | Active | |
Keith Leaman Ltd Director • Chartered Patent Attorney | 24 Jun 2005←11 Years→15 Nov 2016 | Dissolved | |
| Ip Federation Director • Patent Attorney | 4 Jul 1997←2 Years 10 Months→30 Apr 2000 | Active | |
| Qed Intellectual Property Limited Director • Company Director | 15 May 1997←3 Years→1 May 2001 | Dissolved | |
