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Inventor

Steven J. Field

Inventor
Canterbury, GB

Overview

2→
Patents
1985–2020
Patent span
Human necessities
Primary field (CPC A)

Patents· 2 as inventor

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

A61Mprimary
A61MDevices for introducing media into, or onto, the body50%
C10LFuels not otherwise provided for50%
PatentTitleYear
10,603,454Tracheostomy tube assemblies and inner cannulae20204,511,366'Liquid fuels and concentrates containing corrosion inhibitors'1985

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985Patents assigned to ETHYL PETROLEUM ADDITIVES INC (1)· patent assignee history
1985Based in Wokingham, GB· patent location history
2020Patents assigned to SMITHS MEDICAL INTERNATIONAL LTD (1)· patent assignee history
2020Based in Canterbury, GB· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ETHYL PETROLEUM ADDITIVES INC11985
SMITHS MEDICAL INTERNATIONAL LTD12020
Locations
LocationPatentsSpan
Canterbury, GB12020
Wokingham, GB11985