Average Co-Inventor Count = 1.71
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. E & H Plastics, Inc. (2 from 2 patents)
2. Hodgkinson Associates, Inc. (1 from 1 patent)
3. E & H Plastics Co., Inc. (1 from 1 patent)
4 patents:
1. 5482272 - Ball cup for table soccer game
2. 5356143 - Devices for use with an air cushion game table
3. 5148550 - Protective face and head gear
4. 5112551 - Method of molding an improved linkage lever