Average Co-Inventor Count = 1.00
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. John Manufacturing Limited (4 from 359 patents)
4 patents:
1. 5530633 - Combination electric torch
2. D351248 - Adjustable desk lamp
3. D351246 - Combined ajustable desk lamp and radio
4. 4351125 - Telephone index