Average Co-Inventor Count = 1.00
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. Greif Bros. Corp. of Ohio, Inc. (2 from 8 patents)
2. Greif Bros. Corporation (1 from 37 patents)
3 patents:
1. 6223930 - Plastic drum with drain sump
2. 6047846 - Plastic drum with drain sump
3. 5544777 - Stackable plastic container with drain sump and pallet and method of