Average Co-Inventor Count = 3.58
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. Mattel, Inc. (3 from 1,703 patents)
2. Sta-lube, Inc. (1 from 1 patent)
4 patents:
1. 4386639 - Oil drainage apparatus
2. 4182076 - Animated doll
3. 4177984 - Captive flying toy airplane having simulated motor sounds
4. 4141256 - Two-speed inertia motor