Average Co-Inventor Count = 4.50
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. Unger Marketing International, LLC (2 from 223 patents)
2. Zippo Manufacturing Company (1 from 49 patents)
3 patents:
1. 8955191 - Surface cleaning tools having end caps
2. 8726451 - Surface cleaning tools having end caps
3. D661835 - Fire starter