Inventor

John Hemmings

Inventor

Katy, TX, US

Overview

5→

Patents

1986–2013

Patent span

Chemistry

Primary field (CPC C)

Patents· 5 as inventor

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

B01Jprimary

B01JChemical or physical processes, e.g. catalysis or colloid chemistry18%

C01BNon-metallic elements12%

C08JWorking-up12%

C10GCracking hydrocarbon oils12%

H05BElectric heating12%

Y02WClimate change mitigation technologies related to wastewater treatment or waste management12%

B01DSeparation6%

F25JLiquefaction, solidification or separation of gases or gaseous or liquefied gaseous mixtures by pressure and cold treatment or by bringing them into the supercritical state6%

Y02PClimate change mitigation technologies in the production or processing of goods6%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%

PatentTitleYear

8,466,332'Method and apparatus for microwave depolymerization of hydrocarbon feedstocks'2013 8,378,161'Method and apparatus for microwave depolymerization of hydrocarbon feedstocks'2013 7,686,856'Method and apparatus for producing synthesis gas'2010 5,067,972'Purification of gases'1991 4,623,370'Gas treatment process'1986

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1986–1991Patents assigned to AECI LTD (2)· patent assignee history

1986–1991Based in Randburg, ZA· patent location history

2010–2013Based in Katy, TX, US· patent location history

2013Patents assigned to HEMMINGS JOHN (2)· patent assignee history

2013Patents assigned to PINTO THOMAS (2)· patent assignee history

2013Patents assigned to SHARIVKER VIKTOR (2)· patent assignee history

2013Patents assigned to CLIMAX GLOBAL ENERGY INC (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
AECI LTD	2	1986–1991
HEMMINGS JOHNself	2	2013
PINTO THOMAS	2	2013
SHARIVKER VIKTOR	2	2013
CLIMAX GLOBAL ENERGY INC	1	2013

Locations

Location	Patents	Span
Katy, Texas, US	3	2010–2013
Randburg, ZA	2	1986–1991