Average Co-Inventor Count = 2.15
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. Hach Company (3 from 223 patents)
3 patents:
1. D1018328 - Sensor cleaning and calibration system housing
2. D975562 - Handheld meter
3. 11331674 - Liquid mixing