Average Co-Inventor Count = 2.00
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. Supelco, Inc. (2 from 19 patents)
2. Rohm and Haas Company (1 from 3,395 patents)
3 patents:
1. D319879 - Single sample processor syringe for solid phase extraction tubes
2. 4810471 - Vacuum manifold for extraction processing
3. D289861 - Extraction vacuum manifold