Inventor

Keith D. Johnson

Inventor
Woodbury, MN, US

Overview

16→
Patents
1989–2019
Patent span
Performing operations
Primary field (CPC B)

Patents· 16 as inventor

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

B42Dprimary
B42DBooks14%
B01DSeparation10%
C02FTreatment of water, waste water, sewage, or sludge10%
LOC2310%
A01MCatching, trapping or scaring of animals5%
B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers5%
B67DDispensing, delivering or transferring liquids, not otherwise provided for5%
F16LPipes5%
G07FCoin-freed or like apparatus5%
G09FDisplaying5%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989Patents assigned to JOHNSON KEITH D (1)· patent assignee history
1995–1999Based in Inglewood, CA, US· patent location history
2000–2002Patents assigned to ECOLAB INC (3)· patent assignee history
2000–2019Based in Woodbury, MN, US· patent location history
2008Patents assigned to JOHNSON KEITH (1)· patent assignee history
2008Based in Fullerton, CA, US· patent location history
2011Based in Bartlett, IL, US· patent location history
2016–2019Patents assigned to KX TECHNOLOGIES LLC (5)· patent assignee history
2018Patents assigned to HUTCHINSON TECHNOLOGY (1)· patent assignee history
2018Based in Hutchinson, MN, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KX TECHNOLOGIES LLC52016–2019
ECOLAB INC32000–2002
HUTCHINSON TECHNOLOGY12018
JOHNSON KEITHself12008
JOHNSON KEITH Dself11989
Locations
LocationPatentsSpan
Woodbury, Minnesota, US82000–2019
Inglewood, California, US41995–1999
Hutchinson, Minnesota, US12018
Bartlett, Illinois, US12011
Fullerton, California, US12008