Average Co-Inventor Count = 1.33
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. Kds Corporation (1 from 18 patents)
2. Kyoto Measuring Instruments Corp. (1 from 13 patents)
2 patents:
1. D410859 - Reeling tape measure
2. 5632453 - Winding device for measuring tape