Average Co-Inventor Count = 1.20
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. Rowenta Werke Gmbh (1 from 234 patents)
2. Gebr. Happich Gmbh (1 from 124 patents)
3. Wilkinson Sword Gmbh (1 from 112 patents)
3 patents:
1. 4882956 - Emergency Hammer
2. D299304 - Espresso machine
3. D280178 - Pocket knife