Inventor
James M. Johnson, Jr.
Inventor
Glen Ellyn, IL, US
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Lprimary
H04LTransmission of digital information, e.g. telegraphic communication55%
H04QSelecting27%
H04WWireless communication networks9%
LOC149%
PatentTitleYear
10,257,798Synchronizing clocks in a wireless system2019D0584308'Wireless transmitter'20095,115,427'Arrangements for switching multiple packet types combined in a single packet stream'19924,899,335'Self routing packet switching network architecture'19904,821,259'Control information communication arrangement for a distributed control switching system'19894,751,697'Distributed packet switching sytem'19884,577,314'Digital multi-customer data interface'19864,510,594'Loop-around testing facilities for a multiline protocol controller'1985Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1985–1992Patents assigned to AT & T BELL LAB (3)· patent assignee history
1985–1989Based in Glen Ellyn, IL, US· patent location history
1988–1990Patents assigned to AMERICAN TELEPHONE & TELEGRAPH (3)· patent assignee history
1990Based in Wheaton, IL, US· patent location history
1992Based in Marietta, GA, US· patent location history
2009Patents assigned to JOHNSON JR JAMES M (1)· patent assignee history
2009Based in Nauvoo, AL, US· patent location history
2019Patents assigned to OPNT HOLDING B V (1)· patent assignee history
2019Based in Greensboro, GA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| AMERICAN TELEPHONE & TELEGRAPH | 3 | 1988–1990 |
| AT & T BELL LAB | 3 | 1985–1992 |
| JOHNSON JR JAMES Mself | 1 | 2009 |
| OPNT HOLDING B V | 1 | 2019 |
Locations
| Location | Patents | Span |
|---|---|---|
| Glen Ellyn, Illinois, US | 4 | 1985–1989 |
| Greensboro, Georgia, US | 1 | 2019 |
| Nauvoo, AL, US | 1 | 2009 |
| Marietta, Georgia, US | 1 | 1992 |
| Wheaton, Illinois, US | 1 | 1990 |