Average Co-Inventor Count = 2.40
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. Vorwerk & Co Interholding Gmbh (2 from 340 patents)
2 patents:
1. 4437199 - Carpet cleaning device
2. 4319380 - Telescopable guiding device for household apparatus