Average Co-Inventor Count = 3.69
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. Kirin Beer Kabushiki Kaisha (3 from 215 patents)
2. Other (1 from 832,718 patents)
3. Twyford International Inc. (1 from 56 patents)
4 patents:
1. 7216728 - Motorized apparatus for towing a wheelchair
2. 5257889 - Apparatus for selecting seedlings and transferring the same
3. 5225345 - Plant tissue cutting and transplanting apparatus
4. 4906578 - Aerobic-cultivation tank