Average Co-Inventor Count = 5.00
ph-index = 2
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. Environmental Systems Products Holdings Inc. (1 from 18 patents)
2. Envirotest Systems Holdings Corp. (1 from 9 patents)
2 patents:
1. RE44214 - Unmanned integrated optical remote emissions sensor (RES) for motor vehicles
2. RE40767 - Unmanned integrated optical remote emissions sensor (RES) for motor vehicles