Inventor

John Douglas Weir

Inventor
Huntington, NY, US

Overview

14→
Patents
1978–2018
Patent span
Chemistry
Primary field (CPC C)

Patents· 14 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C23Cprimary
C23CCoating metallic material15%
G01NInvestigating or analysing materials by determining their chemical or physical properties12%
Y10TTechnical subjects covered by former us classification12%
C11DDetergent compositions9%
B05BSpraying apparatus6%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form6%
C09DCoating compositions, e.g. paints, varnishes or lacquers6%
F16BDevices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges6%
G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light6%
H05HPlasma technique6%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978Patents assigned to METCO INC (2)· patent assignee history
1978–2018Based in Huntington, NY, US· patent location history
2000–2008Patents assigned to NORTHROP GRUMMAN CORP (8)· patent assignee history
2014–2018Patents assigned to NORTHROP GRUMMAN SYSTEMS CORP (3)· patent assignee history
2014–2016Patents assigned to WEIR JOHN DOUGLAS (2)· patent assignee history
2014Patents assigned to CHU STEVEN (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NORTHROP GRUMMAN CORP82000–2008
NORTHROP GRUMMAN SYSTEMS CORP32014–2018
METCO INC21978
WEIR JOHN DOUGLASself22014–2016
CHU STEVEN12014
Locations
LocationPatentsSpan
Huntington, New York, US141978–2018