Average Co-Inventor Count = 2.67
ph-index = 3
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 (2 from 832,812 patents)
2. Dataproducts New England, Inc. (2 from 8 patents)
4 patents:
1. 8523376 - Self-defense walking aid
2. 7211001 - Personal protection system
3. 4747158 - Cordless communications system
4. 4584707 - Cordless communications system