Average Co-Inventor Count = 2.67
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. Plastic Safety Systems, Inc. (4 from 29 patents)
4 patents:
1. 6769207 - Portable sign assembly
2. 6182600 - Traffic channeling device
3. D406543 - Traffic channelizer
4. 5421668 - Tread ballast or weight for temporary traffic control devices and posts