Average Co-Inventor Count = 2.25
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 (1 from 832,912 patents)
2. Zelco Industries Inc. (1 from 22 patents)
3. Zeller; Noel E. (1 from 1 patent)
3 patents:
1. 4538983 - Foldable safety lighter
2. D277307 - Fire lighter
3. 4247844 - Alarm light