|
| US3932858 | 25. Juli 1974 | 13. Jan. 1976 | Inn-Tronics | Master antenna line communication system |
| US3933240 | 15. Okt. 1974 | 20. Jan. 1976 | Sensormatic Electronics Corporation | Anti-theft security container |
| US4063230 | 12. Juni 1975 | 13. Dez. 1977 | The Magnavox Company | Balanced field theft detection system |
| US4087791 | 9. Sept. 1974 | 2. Mai 1978 | Minnesota Mining and Manufacturing Company | Electromagnetically responsive device and system for detecting the same |
| US4117466 | 14. März 1977 | 26. Sept. 1978 | | Beat frequency interference rejection circuit |
| US4215342 | 31. März 1978 | 29. Juli 1980 | Intex Inc. | Merchandise tagging technique |
| US4260983 | 11. Jan. 1979 | 7. Apr. 1981 | Tag Radionics Limited | Presence sensing detector and system for detecting a receiver/transmitter device affixed to an article |
| US4274090 | 19. Febr. 1980 | 16. Juni 1981 | Knogo Corporation | Detection of articles in adjacent passageways |
| US4481428 | 19. Mai 1981 | 6. Nov. 1984 | Security Tag Systems, Inc. | Batteryless, portable, frequency divider useful as a transponder of electromagnetic radiation |
| US4798175 | 9. Okt. 1986 | 17. Jan. 1989 | Alfa-Laval Agri, Inc. | Electronic identification system |
| US5300922 | 29. Mai 1990 | 5. Apr. 1994 | Sensormatic Electronics Corporation | Swept frequency electronic article surveillance system having enhanced facility for tag signal detection |
| US5786764 | 4. März 1997 | 28. Juli 1998 | | Voice activated electronic locating systems |
| US5798693 | 7. Juni 1995 | 25. Aug. 1998 | | Electronic locating systems |
| US6057756 | 14. Aug. 1998 | 2. Mai 2000 | | Electronic locating systems |
| US6340932 | 27. Juni 2000 | 22. Jan. 2002 | RF Code, Inc. | Carrier with antenna for radio frequency identification |
| US6388569 | 2. Mai 2000 | 14. Mai 2002 | | Electronic locating methods |
| US6452481 | 27. Nov. 1998 | 17. Sept. 2002 | | Apparatus and operative method for detection and reading of transponders in a controlled passage |
| US6456958 | 1. Dez. 2000 | 24. Sept. 2002 | Ensure Technologies, Inc. | Method for allowing a user access to an electronic device having improved security |
| US6891469 | 14. Mai 2002 | 10. Mai 2005 | | Electronic locating systems |
| US7321296 | 9. Mai 2005 | 22. Jan. 2008 | Thomas J. Engellenner | Electronic locating systems |
| US7633378 | 15. Dez. 2005 | 15. Dez. 2009 | RF Code, Inc. | Object identification system with adaptive transceivers and methods of operation |
| US7808367 | 28. Aug. 2002 | 5. Okt. 2010 | Round Rock Research, LLC | RFID material tracking method and apparatus |
| US7902971 | 18. Jan. 2008 | 8. März 2011 | Xalotroff Fund V, Limtied Liability Company | Electronic locating systems |
| US8125316 | 28. Aug. 2002 | 28. Febr. 2012 | Round Rock Research, LLC | RFID material tracking method and apparatus |
| USD294234 | 5. Juni 1986 | 16. Febr. 1988 | Checkpoint Systems, Inc. | Electronic article surveillance system |
| USD297221 | 28. Okt. 1985 | 16. Aug. 1988 | Garrett Electronics, Inc. | Walk-through metal detector |
| USD538806 | 7. Okt. 2005 | 20. März 2007 | Target Brands, Inc. | Radio frequency identification device enclosure |
