Average Co-Inventor Count = 3.27
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. Tomei Sangyo Kabushiki Kaisha (1 from 22 patents)
2. Tomey Technology Corporation (1 from 10 patents)
3. Tomei Sagyo Co., Ltd. (1 from 1 patent)
3 patents:
1. 5681463 - Portable liquid purifying device having activated carbon filter and
2. 5487788 - Method for cleaning and disinfecting contact lens
3. 5130015 - Liquid purifying attachment having pressurizing piston