Average Co-Inventor Count = 1.60
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. Other (4 from 832,843 patents)
4 patents:
1. 5469838 - Gas fireplace capable of being installed without masonry work
2. 5329915 - Gas fireplace capable of being installed without masonry work
3. 4418680 - Fireplace damper and air flow control
4. 3938284 - Root cellar