Average Co-Inventor Count = 3.00
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. Realty & Industrial Corporation (6 from 12 patents)
2. R & I Patent Corporation (3 from 7 patents)
3. R & I Industrial Corp. (1 from 1 patent)
10 patents:
1. 4273455 - Justifying text writing composing machine
2. 4265558 - Differential key lock mechanism for justifying text writing composing
3. 4162130 - Apparatus for performing deleting operations while backspacing in a
4. 4150901 - Justifying text writing composing machine
5. 4140403 - Justifying text writing composing machine
6. 4124314 - Justifying text writing composing machine
7. 4082172 - Justifying text writing reproducing machine
8. 4081070 - Underlining device for justifying text writing reproducing machine
9. 3993179 - Justifying, text writing composing machine
10. 3945480 - Justifying, text writing reproducing machine