Average Co-Inventor Count = 1.56
ph-index = 4
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. Libbey Glass Inc. (3 from 100 patents)
2. Syracuse China Company (3 from 37 patents)
3. World Ta-leware Inc. (1 from 1 patent)
7 patents:
1. D514868 - Pitcher
2. D513935 - Plate
3. D496562 - Knife
4. D472770 - Plate
5. D453282 - Stem for an article of stemware
6. D445648 - Plate
7. D423874 - Stem for an article of stemware