|
| US4081700 | 16. Juni 1976 | 28. März 1978 | | Touch control switch circuit with compensation for power supply line fluctuations |
| US4553040 | 6. Juli 1983 | 12. Nov. 1985 | | Inductive proximity switch |
| US4675659 | 10. Febr. 1986 | 23. Juni 1987 | | Method and apparatus for signaling attempted suicide |
| US4853617 | 19. Nov. 1987 | 1. Aug. 1989 | | Apparatus having capacitive sensor and metal detector for detecting objects concealed behind surfaces |
| US4859931 | 9. Dez. 1987 | 22. Aug. 1989 | Matsushita Electric Works, Ltd. | Electronic detector with capacitor sensor and magnetic field sensor for locating an object behind a wall surface |
| US4992741 | 30. Juni 1989 | 12. Febr. 1991 | The Stanley Works | Capacitive sensor and metal detector with a display for quantitatively displaying signals resulting from concealed objects |
| US5255341 | 26. Aug. 1992 | 19. Okt. 1993 | Kabushiki Kaisha Toshiba | Command input device for voice controllable elevator system |
| US5341036 | 11. Dez. 1991 | 23. Aug. 1994 | Square D Company | Two hand operated machine control station using capacitive proximity switches |
| US5652577 | 27. Okt. 1994 | 29. Juli 1997 | Frasier Products, Inc. | Device and method for passively activating inductive loop sensor |
| US5729604 | 14. März 1996 | 17. März 1998 | Northern Telecom Limited | Safety switch for communication device |
| US5757196 | 26. Sept. 1996 | 26. Mai 1998 | Endress + Hauser GmbH + Co. | Capacitive switch actuated by changes in a sensor capacitance |
| US5801340 | 29. Juni 1995 | 1. Sept. 1998 | Invotronics Manufacturing | Proximity sensor |
| US6259486 | 20. Okt. 1999 | 10. Juli 2001 | | Sensor unit for controlling television set operation |
| US7013570 | 1. Juli 2003 | 21. März 2006 | Irwin-Industrial tool Company | Stud finder |
| US7178250 | 21. Juli 2004 | 20. Febr. 2007 | Irwin Industrial Tool Company | Intersecting laser line generating device |
| US7310887 | 30. Jan. 2007 | 25. Dez. 2007 | Irwin Industrial Tool Company | Intersecting laser line generating device |
| US7311276 | 10. Sept. 2004 | 25. Dez. 2007 | Fellowes Inc. | Shredder with proximity sensing system |
| US7344096 | 2. Febr. 2006 | 18. März 2008 | Fellowes Inc. | Shredder with lock for on/off switch |
| US7469481 | 3. Dez. 2007 | 30. Dez. 2008 | Irwin Industrial Tool Company | Intersecting laser line generating device |
| US7487596 | 25. Juni 2004 | 10. Febr. 2009 | Irwin Industrial Tool Company | Laser line projected on an edge of a surface |
| US7624938 | 17. Nov. 2006 | 1. Dez. 2009 | ACCO UK Limited | Shredding machine |
| US7631822 | 1. Juni 2006 | 15. Dez. 2009 | Fellowes Inc. | Shredder with thickness detector |
| US7631823 | 22. Juni 2007 | 15. Dez. 2009 | Fellowes Inc. | Shredder with thickness detector |
| US7631824 | 26. Juni 2007 | 15. Dez. 2009 | Fellowes Inc. | Shredder with thickness detector |
| US7635102 | 21. Juni 2007 | 22. Dez. 2009 | Fellowes Inc. | Shredder with thickness detector |
| US7661614 | 11. Juli 2005 | 16. Febr. 2010 | Fellowes Inc. | Shredder throat safety system |
| US7712689 | 28. Juni 2007 | 11. Mai 2010 | Fellowes Inc. | Shredder with thickness detector |
| US7737841 | 14. Juli 2006 | 15. Juni 2010 | RemoteMDx | Alarm and alarm management system for remote tracking devices |
| US7757982 | 28. Sept. 2006 | 20. Juli 2010 | Fellowes, Inc. | Shredder with intelligent activation switch |
| US7804412 | 8. Febr. 2008 | 28. Sept. 2010 | SecureAlert, Inc. | Remote tracking and communication device |
| US7936262 | 14. Juli 2006 | 3. Mai 2011 | SecureAlert, Inc. | Remote tracking system with a dedicated monitoring center |
| US7946514 | 13. Okt. 2009 | 24. Mai 2011 | Fellowes, Inc. | Shredder with thickness detector |
| US7946515 | 3. Dez. 2009 | 24. Mai 2011 | Fellowes, Inc. | Shredder throat safety system |
| US7954737 | 4. Okt. 2007 | 7. Juni 2011 | Fellowes, Inc. | Shredder thickness with anti-jitter feature |
| US7963468 | 11. Nov. 2009 | 21. Juni 2011 | Fellowes, Inc. | Shredder with thickness detector |
| US8013736 | 2. Juni 2010 | 6. Sept. 2011 | SecureAlert, Inc. | Alarm and alarm management system for remote tracking devices |
| US8020796 | 16. Juni 2010 | 20. Sept. 2011 | Fellowes, Inc. | Shredder thickness with anti-jitter feature |
| US8031077 | 3. Sept. 2010 | 4. Okt. 2011 | SecureAlert, Inc. | Remote tracking and communication device |
| US8091809 | 24. März 2009 | 10. Jan. 2012 | Fellowes, Inc. | Shredder with jam proof system |
| US8113451 | 16. Juni 2010 | 14. Febr. 2012 | Fellowes, Inc. | Shredder thickness with anti-jitter feature |
| US8162244 | 30. Juli 2008 | 24. Apr. 2012 | ACCO UK Limited | Shredding machine |
| US8201761 | 5. Jan. 2009 | 19. Juni 2012 | Fellowes, Inc. | Thickness sensor based motor controller |
| US8205815 | 15. Mai 2009 | 26. Juni 2012 | Fellowes, Inc. | Paper alignment sensor arrangement |
| US8232876 | 6. März 2009 | 31. Juli 2012 | SecureAlert, Inc. | System and method for monitoring individuals using a beacon and intelligent remote tracking device |
