Inventor

Nevin John Stewart

Inventor

Guildford, GB

Overview

13→

Patents

1988–2021

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 compounds17%

C09KMaterials for miscellaneous applications, not provided for elsewhere13%

C02FTreatment of water, waste water, sewage, or sludge8%

C08JWorking-up8%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%

A23LFoods, foodstuffs or non-alcoholic beverages, not otherwise provided for4%

A23VIndexing scheme relating to foods, foodstuffs or non-alcoholic beverages and lactic or propionic acid bacteria used in foodstuffs or food preparation4%

B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers4%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium4%

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds4%

PatentTitleYear

11,063,432System and method for incorporating distributed energy generation in legacy electricity generation and distribution systems2021 10,894,640Automatic beverage mixer2021 6,527,983'Method for inhibiting scale formation'2003 6,225,263'Use of oil and gas field chemicals'2001 6,173,780'Process for increasing effectiveness of production chemicals by reducing number of squeezing and shut-in operations required to increase production rate from an oil well'2001 5,770,684'Catalyst compositions'1998 5,763,683'2-methylbutoxy ethoxyethanol'1998 5,753,738'Ether cosolvents for resin formulations'1998 5,690,174'Oil and gas field chemicals'1997 5,304,615'Preparation of butene polymers using an ionic liquid'1994 5,261,491'Method for inhibiting scale formation'1993 4,798,906'Preparation of alkoxy halides'1989 4,764,307'Preparation of surfactants'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988–1989Patents assigned to BRITISH PETROLEUM CO PLC (2)· patent assignee history

1988–2001Based in Guildford, GB· patent location history

1993Patents assigned to BRITOIL PLC (1)· patent assignee history

1993–2003Based in Surrey, GB· patent location history

1994–2001Patents assigned to BP CHEM INT LTD (7)· patent assignee history

2021Patents assigned to EDGE ELECTRONS LTD (1)· patent assignee history

2021Patents assigned to FOX DELUXE FINE BRANDS LLC (1)· patent assignee history

2021Based in Los Gatos, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BP CHEM INT LTD	7	1994–2001
BRITISH PETROLEUM CO PLC	2	1988–1989
BRITOIL PLC	1	1993
EDGE ELECTRONS LTD	1	2021
FOX DELUXE FINE BRANDS LLC	1	2021

Locations

Location	Patents	Span
Guildford, GB	9	1988–2001
Surrey, GB	2	1993–2003
Los Gatos, California, US	1	2021