Inventor

Brian Walker

Inventor

Washington, GB

Overview

1978–2018

Patent span

Performing operations

Primary field (CPC B)

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

B01Dprimary

B01DSeparation68%

C02FTreatment of water, waste water, sewage, or sludge5%

F16KValves5%

F24DDomestic- or space-heating systems, e.g. central heating systems5%

F24HFluid heaters, e.g. water or air heaters, having heat-generating means, e.g. heat pumps, in general5%

Y02CCapture, storage, sequestration or disposal of greenhouse gases [ghg]5%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%

Y10TTechnical subjects covered by former us classification5%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1978–1985Patents assigned to PROCESS SCIENT INNOVATIONS (7)· patent assignee history

1978–2018Based in Washington, GB· patent location history

2004–2007Patents assigned to QUIKWATER INC (2)· patent assignee history

2004–2007Based in Broken Arrow, OK, US· patent location history

2005–2018Patents assigned to WALKER FILTRATION LTD (8)· patent assignee history

2005Based in Hexham, GB· patent location history

2006Based in Northumberland, GB· patent location history

2012–2016Patents assigned to WALKER BRIAN (2)· patent assignee history

2012Patents assigned to CARNEY PETER (1)· patent assignee history

2017–2018Based in Tyne & Wear, GB· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations