Average Co-Inventor Count = 1.27
ph-index = 9
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. Halm Instrument Co., Inc. (18 from 27 patents)
2. Halm Industries Co., Inc. (1 from 9 patents)
19 patents:
1. 4264140 - Low reflection coatings for windows
2. 4258702 - Vanes for solar heating
3. 4237863 - Solar heating system
4. 4190084 - Flow control means
5. 4189882 - Translucent roofing means
6. 4155344 - Air-heating solar collector
7. 4153040 - Protective cooling system for solar heat collector
8. 4144872 - Solar energy collector
9. 4108374 - Heat storage water tank
10. 4106480 - Reflective solar heat collector
11. 4086909 - Air-heating solar collector
12. 4076076 - Mechanical heat exchange joint
13. 4051891 - Heat transfer block means
14. 4040804 - Heat and moisture exchanger
15. 4038921 - Means to connect printing presses in tandem