Average Co-Inventor Count = 2.00
ph-index = 1
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. August Ruggeberg Gmbh & Co. Kg (1 from 4 patents)
2. August Rueggeberg Gmbh & Co. Kg (1 from 2 patents)
2 patents:
1. D670990 - Manual sharpener for teeth of chain saws
2. 8291790 - Sharpening device for manually sharpening the cutting teeth of saw chains for chain saws