Average Co-Inventor Count = 2.18
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. Simplex Time Recorder Co. (3 from 52 patents)
2. Simplex Time Recorder (1 from 1 patent)
4 patents:
1. 4063071 - Flexitime recorder
2. 4041503 - Attendance time recorder
3. 3974362 - Flexitime recorder
4. 3952313 - Time recorder