Average Co-Inventor Count = 3.20
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. Sumitomo Naugatuck Co., Ltd. (4 from 39 patents)
4 patents:
1. 5250590 - Flame retardant resin composition
2. 4419491 - Thermoplastic resin composition excellent in color development
3. 4373063 - Elastomeric composition
4. 4271230 - Foamed urethane composite