| 7479878 |
Triboelectric, ranging, or dual use security sensor cable and method of manufacturing same |
Robert Keith Harman |
2009-01-20 |
| 7154391 |
Compact security sensor system |
Pier Bortot |
2006-12-26 |
| 6967584 |
Integrated sensor cable for ranging |
— |
2005-11-22 |
| 5834688 |
Electromagnetic intruder detector sensor cable |
Charles R. Hill |
1998-11-10 |
| 4887069 |
Perimeter intrusion detection system with block ranging capabilities |
Walter J. Feller, Edward L. Adams |
1989-12-12 |
| 4879544 |
Intrusion detection system |
Walter J. Feller |
1989-11-07 |
| 4760362 |
Leaky coaxial cable providing inductive coupling by eliminating radiating gaps, and the method of making same |
— |
1988-07-26 |
| 4721945 |
Simulated targets for detection systems |
Roger G. Pither, James H. Chalmers |
1988-01-26 |
| 4432193 |
Method of grading radiating transmission lines |
— |
1984-02-21 |
| 4300338 |
Method of producing coaxial cable |
Robert Keith Harman |
1981-11-17 |