Average Co-Inventor Count = 2.40
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. De La Rue Giori S.a. (1 from 107 patents)
2. Halm Instrument Co., Inc. (1 from 27 patents)
3. Halm Industries Co., Inc. (1 from 9 patents)
2 patents:
1. 4299325 - Document detector and collector
2. 4264140 - Low reflection coatings for windows