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Patents of Inventions of Arthur Thomas
(Some jointly with Dr R A Hyman)

Application Number Date Filed Subject Title British Patent No:

18012/58 & 10212/59 05/06/1958 & 24/03/1959 Improvements in drift transistors
(and revisions submitted at the later date)
872,531


16446/59 13/05/1959 Diffused base contact for transistors 871,161

35315/60 14/10/1959 Self-powered solid circuits (with RAH) 998,165

35316/60 14/10/1960 Multiple Self-powered oscillators (with RAH) 995,727

9847/61 17/03/1961 Self-powered solid circuit memory unit (with RAH) 907,119

29081/61 11/08/1961 Complementary symmetry solid circuits (with RAH) **

29738/61 17/08/1961 Semiconductor devices with diffused peripheral layers **

36351/61 10/10/1961 Improvements in controlled rectifiers (with RAH) 977,998

41250/61 17/11/1961 Multiple layer solid circuits (with RAH) 1,000,948

** means these patents were abandoned due to prior art, ie: discovery of overseas patents that predated them and were published after the preliminary application.

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Updated 16 December 2006