Inventor
Stephen Callaghan
Inventor
Seattle, WA, US
Overview
Patents· 17 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 communication68%
G01CMeasuring distances, levels or bearings21%
H04BTransmission5%
H04WWireless communication networks5%
PatentTitleYear
10,999,127Configuring network devices using a shared failure domain202110,666,580Network switches using centralized improvement of routing based on link capacity202010,432,503Distribution of prefixes in a network201910,374,956Managing a hierarchical network201910,284,460Network packet tracing201910,181,912Network link testing201910,116,593Transmission and storage of routing path information and routing topology information using a single routing protocol201810,103,851Network link monitoring and testing20189,807,645'Adjusting communication capacity in a multi-stage routing network'20179,712,290'Network link monitoring and testing'20179,699,068'Distributing routing updates according to a decay mode'20179,531,642'Distributing routing updates according to a synchronous mode'20168,937,870'Network link monitoring and testing'20154,898,469'Dither signal remover for a dithered ring laser angular rate sensor'19904,826,320'Dither signal remover for a dithered ring laser angular rate sensor'19894,582,429'Readout for a ring laser'19864,551,021'Discriminant apparatus for laser gyros'1985Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1985–1989Patents assigned to HONEYWELL INC (2)· patent assignee history
1985–1989Based in Minneapolis, MN, US· patent location history
1986Patents assigned to HONEYWELL (1)· patent assignee history
1990Patents assigned to CALLAGHAN STEPHEN P (1)· patent assignee history
1990Based in St. Anthony, MN, US· patent location history
2015–2021Patents assigned to AMAZON TECH INC (13)· patent assignee history
2015Patents assigned to CALLAGHAN STEPHEN (1)· patent assignee history
2015–2018Based in Dublin, IE· patent location history
2016–2019Based in Seattle, WA, US· patent location history
2019–2021Based in Kildare, IE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| AMAZON TECH INC | 13 | 2015–2021 |
| HONEYWELL INC | 2 | 1985–1989 |
| CALLAGHAN STEPHENself | 1 | 2015 |
| CALLAGHAN STEPHEN Pself | 1 | 1990 |
| HONEYWELL | 1 | 1986 |
Locations
| Location | Patents | Span |
|---|---|---|
| Seattle, Washington, US | 7 | 2016–2019 |
| Kildare, IE | 3 | 2019–2021 |
| Dublin, IE | 3 | 2015–2018 |
| Minneapolis, Minnesota, US | 3 | 1985–1989 |
| St. Anthony, Minnesota, US | 1 | 1990 |