Average Co-Inventor Count = 2.86
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. Vermeer Manufacturing Company, Inc. (3 from 469 patents)
2. Vermeer Manucaturing Co. (1 from 1 patent)
4 patents:
1. 8317117 - Chipper drum with integral blower
2. 7721981 - Mechanical brush chipper feed control bar
3. 7562837 - Coordinated control of a winch and a brush chipper
4. 7543767 - Methods of constructing a mechanical four position brush chipper feed control bar