Inventor
Douglas M. Johnson
Inventor
Seattle, WA, US
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Nprimary
G01NInvestigating or analysing materials by determining their chemical or physical properties20%
B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for15%
G01FMeasuring volume, volume flow, mass flow or liquid level10%
G01MTesting static or dynamic balance of machines or structures10%
A61MDevices for introducing media into, or onto, the body5%
B62DMotor vehicles5%
F41HArmour5%
G05DSystems for controlling or regulating non-electric variables5%
G06NComputing arrangements based on specific computational models5%
G08BSignalling systems, e.g. personal calling systems5%
PatentTitleYear
9,213,934'Real time explosive hazard information sensing, processing, and communication for autonomous operation'20158,901,479'Sensor assembly for fluid detection and discrimination'20148,084,731'Sensor system for liquid detection with lens component having an apex'20117,697,028'Vehicle mounted surveillance system'20106,584,973'Ventilator control system and method'20036,179,181'Bike transport rack'20015,966,477'Fiber optic sensor enclosure system'19995,839,760'Trailer mounted accessories'19985,712,934'Fiber optic infrared sensor'1998Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1998–2014Based in Seattle, WA, US· patent location history
2001Patents assigned to BARA TECHNOLOGIES INC (1)· patent assignee history
2001Based in Byron Center, MI, US· patent location history
2003Patents assigned to CARDIOPULMONARY CORP (1)· patent assignee history
2003Based in Winchester, MA, US· patent location history
2010–2014Patents assigned to JOHNSON DOUGLAS M (3)· patent assignee history
2010Based in Edmonton, CA· patent location history
2015Patents assigned to BATTELLE ENERGY ALLIANCE LLC (1)· patent assignee history
2015Based in Idaho Falls, ID, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| JOHNSON DOUGLAS Mself | 3 | 2010–2014 |
| BARA TECHNOLOGIES INC | 1 | 2001 |
| BATTELLE ENERGY ALLIANCE LLC | 1 | 2015 |
| CARDIOPULMONARY CORP | 1 | 2003 |
Locations
| Location | Patents | Span |
|---|---|---|
| Seattle, Washington, US | 4 | 1998–2014 |
| Idaho Falls, ID, US | 1 | 2015 |
| Edmonton, CA | 1 | 2010 |
| Winchester, Massachusetts, US | 1 | 2003 |
| Byron Center, MI, US | 1 | 2001 |