Average Co-Inventor Count = 1.20
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. Koppens Automatic Fabrieken B.v. (2 from 5 patents)
2. Janse Lichtreklame B.v. (1 from 1 patent)
3 patents:
1. 5065295 - Lighting system for advertising purposes
2. 4984612 - Automatic shut-off liquid delivery nozzle
3. 4930717 - Hose storing apparatus