Average Co-Inventor Count = 1.33
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. Vorwerk & Co Elektrowerke Kg (2 from 9 patents)
2. Vorwerk & Co Interholding Gmbh (1 from 340 patents)
3 patents:
1. D277792 - Floor cleaner head
2. 4454627 - Device for cleaning textile surfaces
3. D274150 - Upholstery cleaner