Average Co-Inventor Count = 2.67
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. Manville Service Corporation (1 from 112 patents)
2. Libbey Glass Inc. (1 from 100 patents)
2 patents:
1. 6701748 - Glassware machine
2. 4337075 - Twin center cooling fin for tip type bushing