Average Co-Inventor Count = 3.27
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. Gebr. Happich Gmbh (4 from 124 patents)
2. Schoeller & Co., Elektrotechnische Fabrik Gmbh & Co. (1 from 7 patents)
3. Gebr. Happieh Gmbh (1 from 1 patent)
6 patents:
1. 5223695 - Electric cigarette lighter
2. 5144963 - Ashtray, storage compartment or the like, particularly for automotive
3. 5071205 - Ashtray for vehicles
4. 5018800 - Ashtray for vehicles
5. 4943124 - Ashtray for vehicles
6. 4676544 - Tiltable ashtray suitable for automotive vehicles