Average Co-Inventor Count = 6.27
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. Oerlikon Textile Gmbh & Co Kg (3 from 138 patents)
2. Rational Ag (1 from 52 patents)
3. Punker Gmbh (1 from 2 patents)
4. Lufttechnik Gransee Gmbh (1 from 1 patent)
5. Alfred Karchner Gmbh & Co. Kg (1 from 1 patent)
6. Alfred Kärcher Gmbh Co. Kg (43 patents)
5 patents:
1. 11938438 - Method and device for filtering contaminated air
2. 11731070 - Filter device
3. 11549704 - Filter device and method for changing a filter element
4. 9557066 - Flow directing device for a cooking appliance
5. 8813689 - Radial fan and a high-pressure cleaning device having a radial fan