Average Co-Inventor Count = 2.80
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. Blackberry Corporation (4 from 5,890 patents)
2. American Institutes for Research (2 from 3 patents)
3. Cambium Assessment, Inc. (1 from 1 patent)
7 patents:
1. 10643489 - Constructed response scoring mechanism
2. 9812026 - Constructed response scoring mechanism
3. 9672000 - Method and apparatus for generating an audio notification file
4. 9495965 - Synthesis and display of speech commands method and system
5. 9257019 - Method and apparatus for generating an audio notification file
6. 8613061 - Methods and apparatus to implement electronic book viewers
7. 8564421 - Method and apparatus for generating an audio notification file