Average Co-Inventor Count = 3.00
ph-index = 1
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. Hong Shing Holdings Company Limited (3 from 3 patents)
2. Le Pong Ho Company Limited (1 from 1 patent)
3. Le Pong Holdings Company Limited (1 from 1 patent)
4. Le Hong Po Company Limited (1 from 1 patent)
3 patents:
1. D532504 - Metallic dust-collecting plates
2. D532505 - Metallic dust-collecting plates
3. D529160 - Air purifier