Average Co-Inventor Count = 1.14
ph-index = 4
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 832,880 patents)
2. Amf Bowling, Inc. (1 from 33 patents)
4 patents:
1. 5857918 - Bumper system for a bowling alley
2. 5415591 - Arcuate gutter displacement for bumper bowling
3. 5207422 - Bowling alley bumper system
4. 4900024 - Bowling alley bumper system