|
| US3944763 | 1 Nov 1974 | 16 Mar 1976 | | Swimming pool touch pad |
| US3959610 | 13 Dec 1974 | 25 May 1976 | Motorola, Inc. | Hermetically sealed keyboard type assembly with elastomeric electrical connecting link between switch and component modules |
| US3964594 | 16 Nov 1973 | 22 Jun 1976 | Ing. C. Olivetti & C., S.p.A. | Keyboard of elastic material for office machines |
| US3996429 | 18 Apr 1975 | 7 Dec 1976 | Northern Electric Company Limited | Multi-contact push-button switch having plural prestressed contact members designed to provide plural circuit simultaneous switching inputs |
| US4002892 | 16 Sep 1974 | 11 Jan 1977 | | Portable calculator |
| US4017697 | 15 Sep 1975 | 12 Apr 1977 | Globe-Union Inc. | Keyboard membrane switch having threshold force structure |
| US4021630 | 25 Apr 1975 | 3 May 1977 | Neomed Incorporated | Hermetically sealed resilient contact switch having surgical applications |
| US4029915 | 3 Dec 1975 | 14 Jun 1977 | Hoshidenkoseizo Kabushiki Kaisha | Miniaturized calculator keyboard switch assembly having universally pivoted key actuators |
| US4029916 | 18 Apr 1975 | 14 Jun 1977 | Northern Electric Company Limited | Multi-contact push-button switch and plural embodiment for keyboard switch assembly |
| US4032738 | 15 May 1975 | 28 Jun 1977 | Neomed Incorporated | Electro-surgical instrument |
| US4039068 | 17 Dec 1975 | 2 Aug 1977 | Ing. C. Olivetti & C., S.p.A. | Keyboard of elastic material for office machines |
| US4044642 | 29 Oct 1974 | 30 Aug 1977 | ARP Instruments, Inc. | Touch sensitive polyphonic musical instrument |
| US4055735 | 23 Oct 1975 | 25 Oct 1977 | Honeywell Information Systems Inc. | Touch sensitive device |
| US4057710 | 29 Mar 1976 | 8 Nov 1977 | | Keyboard assembly |
| US4096577 | 20 Oct 1976 | 20 Jun 1978 | | Thin flexible electronic calculator |
| US4114000 | 25 May 1977 | 12 Sep 1978 | Motorola, Inc. | Multi-position switch with single sliding actuator cam, reciprocable cam follower and compressive conductive elastomer |
| US4164634 | 10 Jun 1977 | 14 Aug 1979 | Telaris Telecommunications, Inc. | Keyboard switch assembly with multiple isolated electrical engagement regions |
| US4184321 | 20 May 1977 | 22 Jan 1980 | Kabushiki Kaisha Suwa Seikosha | Electronic wristwatch with calculator having improved conductive packing sheet switch element |
| US4201043 | 21 Jul 1977 | 6 May 1980 | Kabushiki Kaisha Suwa Seikosha | Wristwatch calculator imput key positioning assembly |
| US4207443 | 9 Aug 1978 | 10 Jun 1980 | Mikado Precision Industries Ltd. | Key-operated switch and an assemblage of such switches for electronic desk calculators or the like |
| US4228329 | 26 Jun 1978 | 14 Oct 1980 | Hitachi, Ltd. | Compact keyboard structure |
| US4234813 | 10 Apr 1979 | 18 Nov 1980 | Toray Industries, Inc. | Piezoelectric or pyroelectric polymer input element for use as a transducer in keyboards |
| US4242546 | 6 Nov 1978 | 30 Dec 1980 | International Telephone and Telegraph Corporation | Electrical push-button switch |
| US4258096 | 9 Nov 1978 | 24 Mar 1981 | Sheldahl, Inc. | Composite top membrane for flat panel switch arrays |
| US4259551 | 14 Mar 1979 | 31 Mar 1981 | Citizen Watch Co., Ltd. | External operation device for electronic timepieces |
| US4261042 | 27 Mar 1979 | 7 Apr 1981 | Canon Kabushiki Kaisha | Key signal entering device for thin electronic apparatus |
| US4287394 | 25 Jan 1979 | 1 Sep 1981 | Wilhelm Ruf KG | Keyboard switch assembly with printed circuit board |
| US4300029 | 9 Jan 1980 | 10 Nov 1981 | W. H. Brady Co. | Remote membrane switch |
| US4314227 | 24 Sep 1979 | 2 Feb 1982 | | Electronic pressure sensitive transducer apparatus |
| US4317012 | 17 Apr 1980 | 23 Feb 1982 | Nissan Motor Company, Limited | Display board type switching device |
| US4317013 | 9 Apr 1980 | 23 Feb 1982 | Oak Industries, Inc. | Membrane switch with universal spacer means |
| US4347504 | 21 Aug 1980 | 31 Aug 1982 | Nissan Motor Co., Ltd.
Yazaki Corporation | Device for detecting a burnt-out fuse |
| US4350857 | 3 Oct 1980 | 21 Sep 1982 | Allen-Bradley Company | Illuminated industrial membrane switch |
| US4355483 | 5 Jan 1981 | 26 Oct 1982 | The Quaker Oats Company | Switch mechanism |
| US4375018 | 16 Jun 1980 | 22 Feb 1983 | Sheldahl, Inc. | Membrane switch having adhesive label as edge seal |
| US4376239 | 30 Apr 1982 | 8 Mar 1983 | Allen-Bradley Company | Industrial membrane switch |
| US4388509 | 12 Jan 1982 | 14 Jun 1983 | Braun AG | Synthetic-resin and metallic layered housing for hand-held appliance |
| US4439647 | 14 Jul 1982 | 27 Mar 1984 | | Touchpad keyboard |
| US4488017 | 7 Feb 1983 | 11 Dec 1984 | Amiga Corporation | Control unit for video games and the like |
| US4490587 | 7 Apr 1983 | 25 Dec 1984 | Microdot Inc. | Switch assembly |
| US4492829 | 13 Feb 1984 | 8 Jan 1985 | Rogers Corporation | Tactile membrane keyboard with asymmetrical tactile key elements |
| US4500218 | 20 May 1982 | 19 Feb 1985 | Toho-Polymer Kabushika Kaisha | Keyboard key with embedded top character |
| US4500756 | 19 Mar 1982 | 19 Feb 1985 | Pratt-Read Corporation | Keyboard switch having a deformable membrane formed of cellular urethane |
| US4515999 | 24 Jan 1983 | 7 May 1985 | Rogers Corporation | Full travel keyboard |
| US4520248 | 15 Aug 1980 | 28 May 1985 | Rogers Corporation | Keyboard assembly |
| US4527021 | 3 Feb 1984 | 2 Jul 1985 | Shin-Etsu Polmer Co., Ltd. | Keyboard switch assembly |
| US4555601 | 26 Jan 1983 | 26 Nov 1985 | Sharp Kabushiki Kaisha | Membrane keyboard |
| US4558194 | 21 Mar 1984 | 10 Dec 1985 | Towmotor Corporation | Foot pedal switch |
| US4602135 | 30 May 1985 | 22 Jul 1986 | | Membrane switch |
| US4634818 | 26 Sep 1985 | 6 Jan 1987 | NPM International | Switches and keyboards |
| US4636593 | 17 Apr 1986 | 13 Jan 1987 | Motorola Inc. | Light conducting, elastomeric membrane keypad |
| US4639559 | 7 May 1985 | 27 Jan 1987 | Sharp Kabushiki Kaisha | Membrane keyboard |
| US4640137 | 31 May 1985 | 3 Feb 1987 | Lord Corporation | Tactile sensor |
| US4716262 | 22 Nov 1985 | 29 Dec 1987 | Nena Morse | Vandal-resistant telephone keypad switch |
| US4742192 | 1 Jun 1987 | 3 May 1988 | Saturn Corporation | Steering wheel rim horn blow mechanism |
| US4791252 | 14 Aug 1987 | 13 Dec 1988 | VDO Adolf Schindling AG | Touch panel switch operating arrangement |
| US4801771 | 13 Oct 1987 | 31 Jan 1989 | Yamaha Corporation | Force sensitive device |
| US4818828 | 17 Jun 1988 | 4 Apr 1989 | Smith Corona Corporation | Electronic keyboard |
| US4831219 | 2 Aug 1988 | 16 May 1989 | Kabushiki Kaisha Bandai | Keyboard |
| US4839474 | 10 Dec 1987 | 13 Jun 1989 | Key Innovations Limited | Switches and keyboards |
| US4857683 | 28 Dec 1988 | 15 Aug 1989 | W. H. Brady Co. | Membrane switchcores with key cell contact elements connected together for continuous path testing |
| US4903563 | 5 Jul 1989 | 27 Feb 1990 | Nippon Gakki Seizo Kabushiki Kaisha | Sound bar electronic musical instrument |
| US4916262 | 3 Nov 1988 | 10 Apr 1990 | Motorola, Inc. | Low-profile, rubber keypad |
| US4963876 | 21 Aug 1989 | 16 Oct 1990 | | Thin programmable remote control transmitter |
| US5015829 | 28 Apr 1989 | 14 May 1991 | Hewlett-Packard Company | Key pad and front panel assembly for an electronic instrument |
| US5138119 | 15 Mar 1991 | 11 Aug 1992 | Lucas Duralith Corporation | Backlit tactile keyboard with improved tactile and electrical characteristics |
| US5149923 | 29 Aug 1991 | 22 Sep 1992 | Lucas Duralith Corporation | Backlit tactile keyboard with improved tactile and electrical characteristics |
| US5163765 | 4 Mar 1992 | 17 Nov 1992 | Apple Computer, Inc. | Collapsible keyboard |
| US5187647 | 11 Mar 1991 | 16 Feb 1993 | John Fluke Mfg. Co., Inc. | Electronic instrument keypad assembly with Z-axis oriented electrical interconnect |
| US5217478 | 18 Feb 1987 | 8 Jun 1993 | Linvatec Corporation | Arthroscopic surgical instrument drive system |
| US5265904 | 7 Jan 1993 | 30 Nov 1993 | Ford Motor Company | Airbag cover with integral horn switch |
| US5265905 | 7 Jan 1993 | 30 Nov 1993 | Ford Motor Company | Air bag cover horn blow switch assembly |
| US5371332 | 26 Jan 1993 | 6 Dec 1994 | Siemens Aktiengesellschaft | Sensor control and display unit for dental apparatus |
| US5431064 | 18 Sep 1992 | 11 Jul 1995 | Home Row, Inc. | Transducer array |
| US5578765 | 1 Jun 1995 | 26 Nov 1996 | InControl Solutions, Inc. | Transducer array |
| US5583303 | 1 Jun 1995 | 10 Dec 1996 | InControl Solutions, Inc. | Transducer array |
| US5632759 | 10 Sep 1993 | 27 May 1997 | Linvatec Corporation | Cutting blade assembly for an arthroscopic surgical instrument drive system |
| US5729222 | 25 Nov 1996 | 17 Mar 1998 | Jerry Iggulden | User-configurable control device |
| US5748114 | 24 Apr 1996 | 5 May 1998 | | Flat input keyboard for data processing machines or the like and process for producing the same |
| US5803748 | 30 Sep 1996 | 8 Sep 1998 | Publications International, Ltd. | Apparatus for producing audible sounds in response to visual indicia |
| US5856641 | 8 Jan 1998 | 5 Jan 1999 | Packard Hughes Interconnect Company | Switch having raised contact features and a deflectable substrate |
| US6040534 | 13 Oct 1998 | 21 Mar 2000 | Prince Corporation | Integrally molded switch lighting and electronics |
| US6041215 | 31 Mar 1998 | 21 Mar 2000 | Publications International, Ltd. | Method for making an electronic book for producing audible sounds in response to visual indicia |
| US6809280 | 2 May 2002 | 26 Oct 2004 | 3M Innovative Properties Company | Pressure activated switch and touch panel |
| US7091436 | 17 Dec 2002 | 15 Aug 2006 | IEE International Electronics & Engineering S.A. | Flexible keyboard |
| US7260999 | 23 Dec 2004 | 28 Aug 2007 | 3M Innovative Properties Company | Force sensing membrane |
| US7327039 | 20 May 2003 | 5 Feb 2008 | 3M Innovative Properties Company | Nanoparticle filled underfill |
| US7468199 | 23 Dec 2004 | 23 Dec 2008 | 3M Innovative Properties Company | Adhesive membrane for force switches and sensors |
| US7482201 | 11 Jan 2008 | 27 Jan 2009 | 3M Innovative Properties Company | Nanoparticle filled underfill |
| US7509881 | 29 Jul 2005 | 31 Mar 2009 | 3M Innovative Properties Company | Interdigital force switches and sensors |
| US7823780 | 18 Dec 2006 | 2 Nov 2010 | Harrow Products LLC | Data interface assembly for electronic locks and readers |
| US8223130 | 12 Nov 2008 | 17 Jul 2012 | Sony Corporation | Touch-sensitive sheet member, input device and electronic apparatus |
| USD255667 | 10 Apr 1978 | 1 Jul 1980 | Kone Osakeyhtio | Push button for an elevator |
| USRE32747 | 25 Jun 1986 | 13 Sep 1988 | Braun Aktiengesellschaft | Synthetic-resin and metallic layered housing for hand-held appliance |
