Inventor

David C. Johnson

Inventor
Cheektowaga, NY, US

Overview

13→
Patents
1993–2021
Patent span
Chemistry
Primary field (CPC C)

Patents· 13 as inventor

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

C07Cprimary
C07CAcyclic or carbocyclic compounds13%
H10NElectric solid-state devices not otherwise provided for13%
B01DSeparation9%
C07BGeneral methods of organic chemistry9%
F17CVessels for containing or storing compressed, liquefied or solidified gases9%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution9%
A61KPreparations for medical, dental or toiletry purposes4%
C07KPeptides4%
C22CAlloys4%
C23CCoating metallic material4%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993–2013Patents assigned to OREGON STATE (4)· patent assignee history
1993–2013Based in Eugene, OR, US· patent location history
2000–2001Patents assigned to OCCIDENTAL CHEM CO (3)· patent assignee history
2000–2016Based in Cheektowaga, NY, US· patent location history
2012–2016Patents assigned to JOHNSON DAVID C (4)· patent assignee history
2012–2016Patents assigned to BROWN LLOYD ANTHONY (2)· patent assignee history
2012–2016Patents assigned to PRAXAIR TECHNOLOGY INC (2)· patent assignee history
2021Based in Pell City, AL, US· patent location history
2021Based in Nashville, TN, US· patent location history
2021Based in Brownstown, MI, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
JOHNSON DAVID Cself42012–2016
OREGON STATE41993–2013
OCCIDENTAL CHEM CO32000–2001
BROWN LLOYD ANTHONY22012–2016
PRAXAIR TECHNOLOGY INC22012–2016
Locations
LocationPatentsSpan
Cheektowaga, New York, US52000–2016
Eugene, OR, US51993–2013
Pell City, AL, US12021
Nashville, TN, US12021
Brownstown, MI, US12021