Average Co-Inventor Count = 5.83
ph-index = 1
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. Pola Chemical Industries, Inc. (1 from 94 patents)
2. Lotte Co., Ltd. (1 from 59 patents)
3. Mitsui Engineering and Shipbuilding Company Limited (244 patents)
2 patents:
1. 6495524 - Benzo[b]pyran derivatives useful as external agents for the skin
2. 5629338 - Tannins and lipase inhibitors containing the same as active ingredients