Average Co-Inventor Count = 2.40
ph-index = 4
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. White Consolidated Industries, Inc. (3 from 465 patents)
2. National Union Electric Corporation (1 from 48 patents)
4 patents:
1. D328165 - Stick type vacuum cleaner
2. 5107567 - Stick type vacuum cleaner with a dirt cup secured by a finger-operated
3. D315816 - Hand-held vacuum cleaner
4. 4993108 - Vacuum cleaner with adjustable nozzle shield