Average Co-Inventor Count = 3.87
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. Johns Manville (3 from 1,011 patents)
2. Manville Corporation (1 from 151 patents)
4 patents:
1. RE40380 - Packing machine and method
2. 6931823 - Packaging machine and method
3. 6770339 - Insulation package
4. 5264257 - Glass composite sheathing board