|
| US4114194 | 12. Aug. 1977 | 12. Sept. 1978 | Clairol, Inc. | Ultrasonic cleaner |
| US4241337 | 29. März 1979 | 23. Dez. 1980 | General Electric Company | Appliance door position sensor arrangement |
| US4274070 | 14. Aug. 1979 | 16. Juni 1981 | Surgical Mechanical Research Corp. | Proximity instant-on switch for medical and dental instruments |
| US4287512 | 31. März 1980 | 1. Sept. 1981 | Dynametric, Inc. | Magnetic locking methods and apparatus |
| US4296957 | 24. Sept. 1979 | 27. Okt. 1981 | Lok-A-Wat, Inc. | Chain-lock actuated magnetic switch |
| US4306744 | 3. Dez. 1979 | 22. Dez. 1981 | | Door retainer and alarm device |
| US4310188 | 2. Nov. 1979 | 12. Jan. 1982 | | Magnetic switch for attractive latch |
| US4438430 | 3. Sept. 1981 | 20. März 1984 | Acroseal Window Corporation | Alarm system |
| US4536754 | 13. Mai 1983 | 20. Aug. 1985 | Sentrol, Inc. | Magnetically retained connecting cable incorporating magnetically operated switch |
| US4570156 | 16. März 1984 | 11. Febr. 1986 | Systematics General Corp. | Self-contained secured work station |
| US4703962 | 8. Mai 1986 | 3. Nov. 1987 | Reliable Security Systems, Inc. | Magnetic door lock with time delay option |
| US4788517 | 8. Okt. 1987 | 29. Nov. 1988 | Beta Mfg. Co. | Sealed proximity switch assembly |
| US4814750 | 20. Nov. 1987 | 21. März 1989 | Pace Window & Door Corp. | Window screen alarm |
| US5007199 | 15. Febr. 1990 | 16. Apr. 1991 | Larmco Security, Inc. | Anti-intrusion window |
| US5063372 | 22. Juni 1990 | 5. Nov. 1991 | Ranco Incorporated of Delaware | Door ajar alarm for refrigeration unit |
| US5070319 | 22. Juni 1990 | 3. Dez. 1991 | Ranco Incorporated of Delaware | Door ajar alarm for refrigeration unit |
| US5164705 | 15. Apr. 1991 | 17. Nov. 1992 | Larmco Security, Inc. | Anti-intrusion window |
| US5406263 | 12. Nov. 1993 | 11. Apr. 1995 | Micron Communications, Inc. | Anti-theft method for detecting the unauthorized opening of containers and baggage |
| US5602526 | 21. Nov. 1994 | 11. Febr. 1997 | | Vehicle open door warning system |
| US5646592 | 11. Apr. 1995 | 8. Juli 1997 | Micron Communications, Inc. | Anti-theft method for detecting the unauthorized opening of containers and baggage |
| US5831531 | 25. März 1997 | 3. Nov. 1998 | Micron Communications, Inc. | Anti-theft method for detecting the unauthorized opening of containers and baggage |
| US7916019 | 18. Okt. 2007 | 29. März 2011 | Commissariat A l'Energie Atomique, Etablissement Public A Caractere Industriel Et Commercial | Device for detecting the relative position of two elements via electric circuit section having mechanical function in at least one of the elements |
| USRE42777 | 27. März 2008 | 4. Okt. 2011 | Round Rock Research, LLC | Anti-theft method for detecting the unauthorized opening of containers and baggage |
| USRE43415 | 27. Febr. 2008 | 29. Mai 2012 | Round Rock Research, LLC | Anti-theft method for detecting the unauthorized opening of containers and baggage |
