Average Co-Inventor Count = 1.33
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. Imperial Chemical Industries Limited (1 from 3,840 patents)
2. British Telecommunications Corporation (1 from 445 patents)
2 patents:
1. D294965 - Sprayer wand
2. D283619 - Telephone instrument base