Average Co-Inventor Count = 3.00
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. Mitsubishi Denki Kabushiki Kaisha (4 from 21,351 patents)
2. Ryoden Semiconductor System Engineering Corporation (4 from 52 patents)
4 patents:
1. 5803938 - Liquid vaporizing apparatus
2. 5785902 - Liquid vaporizing apparatus
3. 5662838 - Liquid vaporizing apparatus
4. 5520858 - Liquid vaporizing apparatus