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. G. Leblanc Corporation (3 from 16 patents)
3 patents:
1. 4872389 - Detachable mouthpipe assembly
2. 4178830 - Compact B-flat horn and case therefor
3. 3937116 - Tenor trombone construction