Average Co-Inventor Count = 1.00
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. John Manufacturing Limited (2 from 359 patents)
2. Parly Tools Manufacturing Limited (2 from 4 patents)
4 patents:
1. D272636 - Telephone index
2. D271058 - Combined fluorescent lamp and flashing beacon with automobile plug
3. D270293 - Combined fluorescent lamp and flashing beacon with automobile plug
4. D270199 - Illuminated compact