Inventor

David Frame Steele

Inventor

Caithness, GB

Overview

6→

Patents

1989–2020

Patent span

Chemistry

Primary field (CPC C)

Patents· 6 as inventor

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

C02Fprimary

C02FTreatment of water, waste water, sewage, or sludge33%

A62DChemical means for extinguishing fires or for combating or protecting against harmful chemical agents20%

G21FProtection against x-radiation, gamma radiation, corpuscular radiation or particle bombardment13%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium7%

F42BExplosive charges, e.g. for blasting, fireworks, ammunition7%

H01GCapacitors7%

H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy7%

Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution7%

PatentTitleYear

10,781,225Modified ionic liquids containing cyclic phosphorus moiety2020 5,952,542'Method of oxidation'1999 5,855,763'Electrochemical oxidation of matter'1999 5,810,995'Disposal of organic materials encased in metal'1998 4,925,643'Regeneration of nitrous acid by oxidation with direct application of heated nitric acid'1990 4,874,485'Method for the treatment of waste matter'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–1990Patents assigned to ATOMIC ENERGY AUTHORITY UK (2)· patent assignee history

1989–1999Based in Caithness, GB· patent location history

1998–1999Patents assigned to AEA TECHNOLOGY PLC (2)· patent assignee history

1999Patents assigned to AEA TECHNOLOGY (1)· patent assignee history

1999Based in Dunnet, Caithness, GB· patent location history

2020Patents assigned to NOHMS TECH INC (1)· patent assignee history

2020Based in Webster, NY, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
AEA TECHNOLOGY PLC	2	1998–1999
ATOMIC ENERGY AUTHORITY UK	2	1989–1990
AEA TECHNOLOGY	1	1999
NOHMS TECH INC	1	2020

Locations

Location	Patents	Span
Caithness, GB	4	1989–1999
Webster, New York, US	1	2020
Dunnet, Caithness, GB	1	1999