Average Co-Inventor Count = 2.00
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. Dragerwerk Aktiengesellschaft (2 from 552 patents)
2 patents:
1. 5782235 - Valved filter connection piece for a gas mask
2. 5625902 - Protective hood made of an elastic material