Average Co-Inventor Count = 3.00
ph-index = 2
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. Oosaka Yuuki Kagaku Kogyo Kabushiki Kaisha (3 from 3 patents)
2. Mitsui Kensetsu Kabushiki Kaisha (2 from 16 patents)
3. Shiiai Kemutekku Kabushiki Kaisha (2 from 2 patents)
3 patents:
1. 5326819 - Water absorbent polymer keeping absorbed water therein in the form of
2. 5164428 - Method for the production of fine grain ice and dry clathrate water for
3. 5092933 - Method for the production of concrete/mortar by using dry clathrate