Note: All except a few of this list of my inventions were made while I was employed by a multinational corporation.
I was told that their policy was to encourage the filing of patents which were used in exchanges with other similar companies. These exchanges were based only on the number of patents with no assessment of the “worth” of the idea.
This might make it look more impressive than it is!
| BP number | Date | Title | Co-inventors | |
| 1 | 1138094 | 9-6-1967 | Piezo Resistive Transducer | |
| 2 | 1155519 | 1-12-1967 | Electromechanical Transducer | |
| 3 | 1182996 | 29-2-1968 | Accelerometer | |
| 6 | 1211499 | 7-3-1969 | A method of manufacturing semiconductor devices | |
| 8 | 1211668 | 18-6-1969 | Piezoresistive transducer | |
| 7 | 1235077 | 7-5-1969 | Improvements in or relating to pressure transducers | |
| 4 | 1237959 | 29-1-1969 | Damped wave tone generator | |
| 5 | 1239141 | 7-3-1969 | Improvements in or relating to relays | |
| 10 | 1279782 | 2-2-1971 | Semiconductor device mounting arrangement | |
| 9 | 1289932 | 30-3-1971 | Semiconductor device mounting arrangement | |
| 14 | 1352959 | 9-11-1972 | Passivation of semiconductor devices | |
| 12 | 1388067 | 10-8-1972 | Hot rolled capacitors | H F Stirling |
| 17 | 1403837 | 4-5-1973 | Semicondutor device mount caps | P R Selway, N D Leggett |
| 15 | 1411968 | 19-12-1972 | Pressure transducer | |
| 13 | 1438659 | 30-8-1972 | Television tube | |
| 23 | 1473430 | 27-11-1975 | Charge coupled hall effect device | |
| 19 | 1478974 | 20-9-1973 | A meter for measuring an input by reference to two reference quantities | |
| 26 | 1482884 | 27-11-1975 | Coded keyboard | |
| 27 | 1485104 | 6-5-1976 | Fibre optic switch arrangement | |
| 21 | 1489014 | 13-5-1975 | Multicharacter display device manufacture | |
| 25 | 1494150 | 9-12-1975 | Optical switch arrangement | |
| 22 | 1505913 | 2-10-1975 | Measuring gas concentrations | F H Truscott |
| 20 | 1513248 | 18-7-1974 | Improvements relating to electro-acoustic transducers | |
| 24 | 1520813 | 18-11-1975 | Optical switch arrangement | |
| 31 | 1539856 | 1-3-1977 | Gramophone stylus arrangement | |
| 30 | 1541513 | 1-3-1977 | Semiconductor keyswitch arrangement | |
| 28 | 1542084 | 31-8-1976 | Thin silicon semiconductor devices | J M Young |
| 34 | 1580087 | 22-11-1977 | Electro acoustic transducer device | |
| 33 | 1584914 | 2-3-1978 | Semiconductor actuated switching devices | |
| 35 | 1584915 | 9-5-1978 | Improvements in or relating to silicon devices | |
| 37 | 1588669 | 30-5-1978 | Silicon transducer | |
| 29 | 1596982 | 1-3-1977 | Mechanical resonator arrangements | |
| 40 | 2095911 | 17-3-1981 | Electrical switch device | |
| 45 | 2107876 | 1-10-1981 | Strain gauges | |
| 46 | 2107924 | 1-10-1981 | Strain gauge pressure transducers | |
| 47 | 2114810 | 11-2-1982 | Electro-mechanical devices | T M Jackson |
| 44 | 2115551 | 9-2-1982 | Load sensors | |
| 48 | 2115949 | 23-2-1982 | Silicon X-ray mask | D W Satchell |
| 43 | 2121646 | 9-5-1983 | Transducer | |
| 42 | 2121953 | 10-6-1982 | Improvements in transducers | |
| 49 | 2121980 | 10-6-1982 | X ray masks | D W Satchell |
| 41 | 2122027 | 13-5-1982 | Transducer | |
| 50 | 2130373 | 1-7-1983 | Accelerometer device | D W Satchell, D Wilson |
| 53 | 2139358 | 5-5-1983 | Piezo-resistive device responsive | |
| to rotational movement | ||||
| 54 | 2139811 | 10-5-1983 | Switch device | R J Hodges, R Sheppard |
| 56 | 2145279 | 18-8-1983 | Photodetector integrated circuit | G H B Thompson |
| 55 | 2146566 | 16-9-1983 | Electrostatic bonding | D W Satchell |
| 57 | 2146697 | 17-9-1985 | Flexible hinge device | D Wilson |
| 58 | 2161931 | 11-7-1985 | Remote sensor system | G D Pitt etc |
| 59 | 2162314 | 24-7-1984 | Transducer | D Wilson |
| 62 | 2175705 | 24-5-1985 | Dirigible reflector and mounting made of crystal material | D P Newstead |
| 61 | 2181247 | 2-10-1985 | Gyroscope device | |
| 63 | 2189601 | 31-3-1987 | Mechanical resonator device | |
| 65 | 2197069 | 3-11-1986 | Optically driven sensor device | P W Graves, R C Neat |
| 68 | 2215052 | 13-2-1988 | Resonantly vibrating temperature sensor | D W Satchell |
| 66 | 2215053 | 13-2-1988 | Electro-mechanical oscillating transducer device | P N Egginton |
| 67 | 2215840 | 26-3-1988 | An oscillatory transducer which is optically sensed and electromagnetically excited | J M Naden |
| 69 | 882324.3 | 4-10-1988 | (Provisional) Pressure sensor | |
| 70 | 8825357.0 | 29-10-1988 | (Provisional) Interconnection of integrated circuit chips | |
| 72 | 8827436 | (Provisional) Fibre optic termination | ||
| 71 | 8907284.4 | 31-3-1989 | (Provisional) Differential pressure sensor | |
| 73 | 8907535 | (Provisional) Vibration sensor | ||
| 02013375.7 | 19-06-2002 | Improved sensor |