Average Co-Inventor Count = 1.33
ph-index = 5
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Other (6 from 832,966 patents)
6 patents:
1. 7728725 - Intrusion detection system for underground/above ground applications using radio frequency identification transponders
2. 7069160 - Intrusion detection system and method thereof
3. 6742714 - Proximity card with incorporated PIN code protection
4. 6340116 - Proximity card with incorporated pin code protection
5. 5896215 - Multi-channel system with multiple information sources
6. 5139179 - Apparatus for dispensing and preserving liquids