Average Co-Inventor Count = 1.80
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. Cairns & Brother Inc. (2 from 25 patents)
2. Gairns & Brother Inc. (1 from 1 patent)
3 patents:
1. 5271390 - Positive pressure breathing assembly and demand regulator therefor
2. D336546 - Facepiece
3. 5000174 - Positive pressure breathing assembly and demand regulator therefor