Inventor

John R. Walker

Inventor
Brussels, BE

Overview

15→
Patents
1983–2019
Patent span
Chemistry
Primary field (CPC C)

Patents· 15 as inventor

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

C11Dprimary
C11DDetergent compositions22%
C09KMaterials for miscellaneous applications, not provided for elsewhere19%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests15%
Y10TTechnical subjects covered by former us classification11%
A61KPreparations for medical, dental or toiletry purposes7%
B02CCrushing, pulverising, or disintegrating in general7%
F16LPipes7%
C09JAdhesives4%
D06MTreatment, not provided for elsewhere in class d06, of fibres, threads, yarns, fabrics, feathers or fibrous goods made from such materials4%
D06NWall, floor, or like covering materials, e.g. linoleum, oilcloth, artificial leather, roofing felt, consisting of a fibrous web coated with a layer of macromolecular material4%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–1985Patents assigned to PROCTER & GAMBLE (6)· patent assignee history
1983–1984Based in Brussels, BE· patent location history
1984–1988Patents assigned to ALLIED COLLOIDS LTD (5)· patent assignee history
1984–1991Based in Halifax, GB· patent location history
1985–2019Patents assigned to WALKER JOHN R (3)· patent assignee history
1985Based in Waterloo, BE· patent location history
1987–1988Based in West Yorkshire, GB· patent location history
2019Patents assigned to COLLINS JAMES R (2)· patent assignee history
2019Patents assigned to POUNDS ANDREW J (2)· patent assignee history
2019Based in Macon, GA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
PROCTER & GAMBLE61983–1985
ALLIED COLLOIDS LTD51984–1988
WALKER JOHN Rself31985–2019
COLLINS JAMES R22019
POUNDS ANDREW J22019
Locations
LocationPatentsSpan
Brussels, BE51983–1984
Halifax, GB31984–1991
West Yorkshire, GB31987–1988
Macon, Georgia, US22019
Waterloo, BE11985