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Inventor

John O. H. Newman

Inventor
Los Angeles, CA, US

Overview

4→
Patents
1980–2021
Patent span
Chemistry
Primary field (CPC C)

Patents· 4 as inventor

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

LOC06primary
LOC0640%
C10CWorking-up pitch, asphalt, bitumen, tar20%
C10GCracking hydrocarbon oils20%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests20%
PatentTitleYear
D0919333Mattress2021D0908398Mattress20214,330,394'Quenching process'19824,218,303'Coal pyrolysis'1980

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1980–1982Patents assigned to COAL INDUSTRY PATENTS LTD (2)· patent assignee history
1980Based in Southam, GB· patent location history
1982Based in Cheltenham, GB· patent location history
2021Patents assigned to CASPER SLEEP INC (2)· patent assignee history
2021Based in Los Angeles, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CASPER SLEEP INC22021
COAL INDUSTRY PATENTS LTD21980–1982
Locations
LocationPatentsSpan
Los Angeles, California, US22021
Cheltenham, GB11982
Southam, GB11980