List of patents granted during my employment

 BP numberDateTitleCo-inventors
111380949-6-1967Piezo Resistive Transducer 
211555191-12-1967Electromechanical Transducer 
3118299629-2-1968Accelerometer 
612114997-3-1969A method of manufacturing semiconductor devices 
8121166818-6-1969Piezoresistive transducer 
712350777-5-1969Improvements in or relating to pressure transducers 
4123795929-1-1969Damped wave tone generator 
512391417-3-1969Improvements in or relating to relays 
1012797822-2-1971Semiconductor device mounting arrangement 
9128993230-3-1971Semiconductor device mounting arrangement 
1413529599-11-1972Passivation of semiconductor devices 
12138806710-8-1972Hot rolled capacitorsH F Stirling
1714038374-5-1973Semicondutor device mount capsP R Selway, N D Leggett
15141196819-12-1972Pressure transducer 
13143865930-8-1972Television tube 
23147343027-11-1975Charge coupled hall effect device 
19147897420-9-1973A meter for measuring an input by reference to  two reference quantities 
26148288427-11-1975Coded keyboard 
2714851046-5-1976Fibre optic switch arrangement 
21148901413-5-1975Multicharacter display device manufacture 
2514941509-12-1975Optical switch arrangement 
2215059132-10-1975Measuring gas concentrationsF H Truscott
20151324818-7-1974Improvements relating to electro-acoustic  transducers 
24152081318-11-1975Optical switch arrangement 
3115398561-3-1977Gramophone stylus arrangement 
3015415131-3-1977Semiconductor keyswitch arrangement 
28154208431-8-1976Thin silicon semiconductor devicesJ M Young
34158008722-11-1977Electro acoustic transducer device 
3315849142-3-1978Semiconductor actuated switching devices 
3515849159-5-1978Improvements in or relating to silicon devices 
37158866930-5-1978Silicon transducer 
2915969821-3-1977Mechanical resonator arrangements 
40209591117-3-1981Electrical switch device 
4521078761-10-1981Strain gauges 
4621079241-10-1981Strain gauge pressure transducers 
47211481011-2-1982Electro-mechanical devicesT M Jackson
4421155519-2-1982Load sensors 
48211594923-2-1982Silicon X-ray maskD W Satchell
4321216469-5-1983Transducer 
42212195310-6-1982Improvements in transducers 
49212198010-6-1982X ray masksD W Satchell
41212202713-5-1982Transducer 
5021303731-7-1983Accelerometer deviceD W Satchell, D Wilson
5321393585-5-1983Piezo-resistive device responsive 
   to rotational  movement 
54213981110-5-1983Switch deviceR J Hodges, R Sheppard
56214527918-8-1983Photodetector integrated circuitG H B Thompson
55214656616-9-1983Electrostatic bondingD W Satchell
57214669717-9-1985Flexible hinge deviceD Wilson
58216193111-7-1985Remote sensor systemG D Pitt etc
59216231424-7-1984TransducerD Wilson
62217570524-5-1985Dirigible reflector and mounting made of crystal  materialD P Newstead
6121812472-10-1985Gyroscope device 
63218960131-3-1987Mechanical resonator device 
6521970693-11-1986Optically driven sensor deviceP W Graves, R C Neat
68221505213-2-1988Resonantly vibrating temperature sensorD W Satchell
66221505313-2-1988Electro-mechanical oscillating transducer deviceP N Egginton
67221584026-3-1988An oscillatory transducer which is optically  sensed and electromagnetically excitedJ M Naden
69882324.34-10-1988(Provisional) Pressure sensor 
708825357.029-10-1988(Provisional) Interconnection of integrated circuit chips 
728827436 (Provisional) Fibre optic termination 
718907284.431-3-1989(Provisional) Differential pressure sensor 
738907535 (Provisional) Vibration sensor 
 02013375.719-06-2002Improved sensor