Average Co-Inventor Count = 1.50
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. Imi Marston Limited (1 from 15 patents)
2. Marston Palmer Limited (1 from 4 patents)
2 patents:
1. 4899808 - Condensing surface for heat exchanger with fins arranged to drip
2. 4434842 - Plate fin heat exchanger