Average Co-Inventor Count = 2.99
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. Matsushita Electric Industrial Co., Ltd. (7 from 27,375 patents)
7 patents:
1. 7191473 - Sanitary washing apparatus
2. 5533669 - Heat transfer apparatus
3. 4872831 - Kerosene heater providing automatic wick repositioning after ignition
4. 4847192 - Apparatus for finely raising and lowering a wick of a kerosene heater
5. 4613298 - Oil burner
6. 4580971 - Oil heater
7. 4519775 - Burner apparatus