Average Co-Inventor Count = 1.64
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. Matsushita Electric Industrial Co., Ltd. (3 from 27,375 patents)
3 patents:
1. 4613298 - Oil burner
2. 4580970 - Wick holder apparatus for kerosene heater
3. 4549523 - Heating apparatus