Average Co-Inventor Count = 3.27
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 (3 from 832,912 patents)
3 patents:
1. 4969478 - Portable cigarette ashtray
2. 4919427 - Moebius ring puzzle
3. 4886161 - Container for cigarettes, and cardboard blank for use in making same