Average Co-Inventor Count = 1.20
ph-index = 5
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. Louis Marx & Co., Inc. (4 from 28 patents)
2. Other (2 from 832,812 patents)
3. Empire of Carolina (1 from 9 patents)
7 patents:
1. 4269413 - Pinball game
2. 4189150 - Pinball game with longitudinally moving flipper controls
3. 4143747 - Coaster brake
4. 4136871 - Rotary table ball game
5. D249731 - Pinball game cabinet
6. D248250 - Table ball game board device
7. 4095816 - Toy vehicle construction