Average Co-Inventor Count = 1.56
ph-index = 7
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. Sabh (u.s.) Water Heater Group, Inc. (5 from 5 patents)
2. American Water Heater Company (2 from 19 patents)
7 patents:
1. 6725811 - Water heater with low NOx fiber matrix burner
2. RE37240 - Water heater with reduced localized overheating
3. 5636598 - Induced draft combustion water heater
4. 5511516 - Water heater with low NO.sub.x ceramic burner
5. 5474202 - Method of making a water heater and an improved water heater structure
6. 5357907 - Water heater with reduced localized overheating
7. 5355841 - Water heater with integral burner