Inventor

James B. Callis

Inventor
Seattle, WA, US

Overview

7→
Patents
1977–2009
Patent span
Physics
Primary field (CPC G)

Patents· 7 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 properties33%
A61BDiagnosis17%
G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure17%
G01MTesting static or dynamic balance of machines or structures17%
G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light8%
Y10TTechnical subjects covered by former us classification8%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977Patents assigned to RESEARCH CORP (1)· patent assignee history
1977–2009Based in Seattle, WA, US· patent location history
1993–2009Patents assigned to UNIV WASHINGTON (6)· patent assignee history
1998Patents assigned to MINNESOTA MINING & MFG (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
UNIV WASHINGTON61993–2009
MINNESOTA MINING & MFG31998
RESEARCH CORP11977
Locations
LocationPatentsSpan
Seattle, Washington, US71977–2009