Average Co-Inventor Count = 1.80
ph-index = 5
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. Other (4 from 832,912 patents)
2. Sargent Manufacturing Company (1 from 137 patents)
3. Sargent Manufacturing (1 from 4 patents)
6 patents:
1. D363205 - Handle
2. 4869083 - Cylindrical lever handle lock
3. 4007823 - Typewriter correction materials employing adhesives
4. 3998314 - Impact typewriter correction tape and method of manufacture
5. 3974539 - Cutter device for typewriter correction pick-off device
6. 3930697 - Dispenser for strip material