|
| US3982081 | 20. Mai 1975 | 21. Sept. 1976 | AMP Incorporated | Keyboard assembly with overlapped flexible printed circuit cable switch |
| US3999025 | 30. Juli 1975 | 21. Dez. 1976 | Burroughs Corporation | Low profile tactile feedback keyboard switch assembly |
| US4028509 | 29. Aug. 1975 | 7. Juni 1977 | Hughes Aircraft Company | Simplified tabulator keyboard assembly for use in watch/calculator having transparent foldable flexible printed circuit board with contacts and actuator indicia |
| US4051337 | 27. Jan. 1976 | 27. Sept. 1977 | Cavitron Corporation | Dental handpiece switch |
| US4063054 | 14. Nov. 1975 | 13. Dez. 1977 | Canon Kabushiki Kaisha | Key switch |
| US4066851 | 1. Juli 1976 | 3. Jan. 1978 | Chomerics, Inc. | Keyboard switch assembly having foldable printed circuit board, integral spacer and preformed depression-type alignment fold |
| US4099037 | 21. Juni 1976 | 4. Juli 1978 | National Semiconductor Corporation | Key board switch assembly having canti-levered leaf spring contact assembly on common conductive frame |
| US4145584 | 25. Apr. 1977 | 20. März 1979 | | Flexible keyboard switch with integral spacer protrusions |
| US4192976 | 29. Dez. 1978 | 11. März 1980 | GTE Automatic Electric Laboratories Incorporated | Pushbutton call transmitter |
| US4228330 | 10. Juli 1978 | 14. Okt. 1980 | Litton Systems, Inc. | Touch panel mechanism |
| US4297542 | 19. Dez. 1979 | 27. Okt. 1981 | | Folded circuit switch apparatus having multiple contacts |
| US4316066 | 28. Nov. 1980 | 16. Febr. 1982 | International Telephone and Telegraph Corporation | Key switch with snap-action contact and resilient actuator |
| US4322588 | 4. Apr. 1980 | 30. März 1982 | UMC Industries, Inc. | Slide selector switch device |
| US4323740 | 4. Febr. 1980 | 6. Apr. 1982 | Rogers Corporation | Keyboard actuator device and keyboard incorporating the device |
| US4324956 | 15. Mai 1980 | 13. Apr. 1982 | Omron Tateisi Electronics Co. | Fluid-proof slide switch |
| US4341934 | 21. Nov. 1980 | 27. Juli 1982 | The Keyboard Company | Actuator for keyboard switches |
| US4342883 | 22. Aug. 1979 | 3. Aug. 1982 | Northern Telecom, Inc. | Pushbutton switch assemblies for telephone sets |
| US4365536 | 27. Okt. 1980 | 28. Dez. 1982 | Whirlpool Corporation | Sliding actuator membrane switch for organ keyboard |
| US4370533 | 5. Dez. 1980 | 25. Jan. 1983 | Fujitsu Limited | Keyboard switch and process for production thereof |
| US4447681 | 22. Febr. 1983 | 8. Mai 1984 | AMP Incorporated | Switch key assembly having improved switch actuation |
| US4467150 | 24. Febr. 1982 | 21. Aug. 1984 | Digital Equipment Corporation | Electronic keyboard |
| US4492838 | 24. Febr. 1983 | 8. Jan. 1985 | AMP Incorporated | Key switch having an actuator integral with the return spring |
| US4621373 | 13. März 1984 | 4. Nov. 1986 | General Electric Company | Control surface for a trunking personal radio |
| US4686499 | 12. März 1986 | 11. Aug. 1987 | Cincinnati Microwave, Inc. | Police radar warning receiver with cantilevered PC board structure |
| US4818828 | 17. Juni 1988 | 4. Apr. 1989 | Smith Corona Corporation | Electronic keyboard |
| US4874913 | 22. Apr. 1988 | 17. Okt. 1989 | Oki Electric Industry Co., Ltd. | Luminous element holding structure for an illuminated key switch |
| US4877347 | 25. Nov. 1987 | 31. Okt. 1989 | Ta Triumph-Adler Aktiengesellschaft | Keyboard for typewriters or similar machines |
| US4942276 | 11. Apr. 1989 | 17. Juli 1990 | Futaba Denshi Kogyo Kabushiki Kaisha | Clicked key board switch |
| US4952762 | 7. Apr. 1989 | 28. Aug. 1990 | Futaba Denshi Kogyo Kabushiki Kaisha | Keyboard switch |
| US4972051 | 7. Aug. 1989 | 20. Nov. 1990 | General Electric Company | Switch for two-way hand-held transceiver |
| US4977298 | 8. Sept. 1989 | 11. Dez. 1990 | Matsushita Electric Industrial Co., Ltd. | Panel switch |
| US5075524 | 30. Aug. 1990 | 24. Dez. 1991 | Stocko Metallwarenfabriken Henkels und Sohn GmbH & Co. | Electric pushbutton switch |
| US5121091 | 27. Sept. 1990 | 9. Juni 1992 | Matsushita Electric Industrial Co., Ltd. | Panel switch |
| US5152230 | 20. Juni 1983 | 6. Okt. 1992 | | Joining means for securing articles together |
| US5388922 | 23. Juli 1993 | 14. Febr. 1995 | Smith Corona Corporation | Miniature keyboard |
| US5422447 | 14. Apr. 1994 | 6. Juni 1995 | Key Tronic Corporation | Keyboard with full-travel, self-leveling keyswitches and return mechanism keyswitch |
| US5562203 | 11. Sept. 1995 | 8. Okt. 1996 | Brother Kogyo Kabushiki Kaisha | Keyswitch |
| US6781077 | 14. Dez. 2000 | 24. Aug. 2004 | Think Outside, Inc. | Keyswitch and actuator structure |
| US6797906 | 10. März 2003 | 28. Sept. 2004 | Brother Kogyo Kabushiki Kaisha | Membrane switch, key switch using membrane switch, keyboard having key switches, and personal computer having keyboard |
| US6911608 | 23. Mai 2003 | 28. Juni 2005 | Digit Wireless, LLC | Keypads and key switches |
| US7005588 | 10. Juni 2004 | 28. Febr. 2006 | Nokia Corporation | Keyboard and a method for manufacturing it |
| US7126498 | 26. Febr. 2003 | 24. Okt. 2006 | Digit Wireless, LLC | Keypad construction |
| US7391861 | 22. Mai 2001 | 24. Juni 2008 | Digit Wireless, LLC | Input devices and their use |
| US7851718 | 25. März 2008 | 14. Dez. 2010 | Panasonic Corporation | Electronic equipment |
| US7911450 | 14. Sept. 2005 | 22. März 2011 | Research In Motion Limited | Input apparatus for a handheld electronic device and method of enabling input employing the same |
| US7989716 | 2. Nov. 2009 | 2. Aug. 2011 | Foxconn Communication Technology Corp. | Keypad assembly and electronic device using same |
| US8094806 | 3. Mai 2007 | 10. Jan. 2012 | Nuance Communications, Inc. | Input devices and their use |
| USRE32419 | 27. Jan. 1986 | 12. Mai 1987 | Engineering Research Applications, Inc. | Molded keyboard and method of fabricating same |
