Average Co-Inventor Count = 3.16
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. Rokenbok Toy Company (5 from 22 patents)
5 patents:
1. 6719607 - Control system for, and method of, operating toy vehicles
2. 6666746 - Control system for, and method of, operating toy vehicles
3. 6475058 - Rotary tower crane with vertically extendable and retractable load maneuvering boom
4. 6450856 - Control system for, and method of, operating toy vehicles
5. 5879221 - Toy bulldozer with blade float mechanism