Average Co-Inventor Count = 2.60
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. Dictaphone Corporation. (8 from 159 patents)
2. Swingline Inc. (3 from 48 patents)
3. Welch Allyn, Inc. (1 from 873 patents)
13 patents:
1. D266665 - Cassette tape recorder or the like
2. D266503 - Tape recording machine
3. D263467 - Tape recording machine
4. D260258 - Powered collator
5. D260133 - Letter opener
6. D259876 - Tape recording machine
7. D254706 - Power-driven stapler
8. D250707 - Console for central dictation system
9. D249261 - Multiple cassette recording machine
10. D247620 - Apparatus for monitoring remote transcribing operations in a central
11. D246039 - Dictation machine or similar article
12. D244700 - Remote control microphone or similar article
13. D243973 - Retinoscope