Inventor

Thomas E. Richards

Inventor

Jennings, FL, US

Overview

1979–2020

Patent span

Chemistry

Primary field (CPC C)

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

C01Bprimary

C01BNon-metallic elements27%

B01DSeparation18%

C10GCracking hydrocarbon oils9%

C22BProduction and refining of metals9%

F23DBurners9%

F23GCremation furnaces9%

F23JRemoval or treatment of combustion products or combustion residues9%

Y02PClimate change mitigation technologies in the production or processing of goods9%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1979Based in Houston, TX, US· patent location history

1981Patents assigned to DAIGLE MICHAEL A (1)· patent assignee history

1981Patents assigned to HARVEY JAMES P (1)· patent assignee history

1981–1982Based in Jennings, FL, US· patent location history

1982–1989Patents assigned to OCCIDENTAL CHEM CO (2)· patent assignee history

1989Based in Jasper, FL, US· patent location history

2020Patents assigned to HERAEUS DEUTSCHLAND GMBH & CO KG (1)· patent assignee history

2020Patents assigned to Heraeus Precious Metals North America LLC (1)· patent assignee history

2020Based in Wartsburg, TN, US· patent location history

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
OCCIDENTAL CHEM CO	2	1982–1989
DAIGLE MICHAEL A	1	1981
HARVEY JAMES P	1	1981
HERAEUS DEUTSCHLAND GMBH & CO KG	1	2020
Heraeus Precious Metals North America LLC	1	2020

Locations