Average Co-Inventor Count = 2.40
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. General Signal Corporation (3 from 786 patents)
3 patents:
1. 5526236 - Lighting device used in an exit sign
2. 5459955 - Lighting device used in an exit sign
3. 5416679 - Mounting base assembly for a lighting device used in an exit sign