Inventor

David C. Johnson

Inventor

Kenilworth, GB

Overview

1980–2017

Patent span

Chemistry

Primary field (CPC C)

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

F16Dprimary

F16DCouplings for transmitting rotation16%

C04BLime, magnesia11%

Y10TTechnical subjects covered by former us classification11%

A61KPreparations for medical, dental or toiletry purposes8%

B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form8%

A61PSpecific therapeutic activity of chemical compounds or medicinal preparations5%

C07KPeptides5%

C12NMicroorganisms or enzymes5%

G01NInvestigating or analysing materials by determining their chemical or physical properties5%

C07CAcyclic or carbocyclic compounds3%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1997–2017Based in Kenilworth, GB· patent location history

1998–2013Patents assigned to JOHNSON DAVID C (3)· patent assignee history

1998–1999Patents assigned to YORK IAN A (2)· patent assignee history

1998–1999Based in Ontario, CA· patent location history

2003–2006Patents assigned to DUNLOP AEROSPACE LTD (2)· patent assignee history

2011–2017Patents assigned to MEGGITT AEROSPACE LTD (3)· patent assignee history

2011–2017Based in Warwickshire, GB· patent location history

2011Based in Wayne, PA, US· patent location history

2013Patents assigned to CROFOOT STEVEN D (1)· patent assignee history

2013Based in Midland, MI, US· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations