LexDanaLexDanabeta
Inventor

Doug Campbell

Inventor
Overland Park, KS, US

Overview

6→
Patents
1993–2020
Patent span
LOC
Primary field

Patents· 6 as inventor

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

LOC08primary
LOC0825%
B08BCleaning in general13%
B23DPlaning13%
F16DCouplings for transmitting rotation13%
G01BMeasuring length, thickness or similar linear dimensions13%
LOC0413%
Y10TTechnical subjects covered by former us classification13%
PatentTitleYear
10,639,733Reciprocating saw blade202010,584,754Line replaceable brake2020D0710669'Sanding pad'2014D0698155'Brush'2014D0691013'Sanding pad for reciprocating saw'20135,263,220'Pig passage indicator mechanism incorporating a fluid seal construction'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993Patents assigned to CAMPBELL DOUG C (1)· patent assignee history
1993Based in Sherwood Park, Alberta, CA· patent location history
2013–2020Patents assigned to CAMPBELL DOUG (4)· patent assignee history
2013–2020Patents assigned to CAMPBELL RYAN (4)· patent assignee history
2013–2020Patents assigned to SM PRODUCTS LLC (4)· patent assignee history
2013–2020Based in Overland Park, KS, US· patent location history
2020Patents assigned to FRIES RUSSELL D (1)· patent assignee history
2020Based in Martinsville, NJ, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CAMPBELL DOUGself42013–2020
CAMPBELL RYAN42013–2020
SM PRODUCTS LLC42013–2020
CAMPBELL DOUG Cself11993
FRIES RUSSELL D12020
Locations
LocationPatentsSpan
Overland Park, KS, US42013–2020
Martinsville, New Jersey, US12020
Sherwood Park, Alberta, CA11993