Inventor

David A. Springer

Inventor

Winters, CA, US

Overview

1992–2015

Patent span

Mechanical engineering

Primary field (CPC F)

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

F24Fprimary

F24FAir-conditioning25%

Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications21%

E04DRoof coverings7%

F24DDomestic- or space-heating systems, e.g. central heating systems7%

F25BRefrigeration machines, plants or systems7%

G05DSystems for controlling or regulating non-electric variables7%

E02DFoundations4%

E04BGeneral building constructions4%

F24HFluid heaters, e.g. water or air heaters, having heat-generating means, e.g. heat pumps, in general4%

F25DRefrigerators4%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1992–2013Patents assigned to DAVIS ENERGY GROUP INC (6)· patent assignee history

1992–1996Based in Davis, CA, US· patent location history

2008Patents assigned to DAVIS ENERGY GROUP (1)· patent assignee history

2008–2015Based in Winters, CA, US· patent location history

2013–2015Patents assigned to SPRINGER DAVID A (2)· patent assignee history

2013Patents assigned to HOESCHELE MARC A (1)· patent assignee history

2015Patents assigned to MCNEIL JOSHUA B (1)· patent assignee history

Assignee and location history derived from the patent record.

Assignees

Locations

Location	Patents	Span
Winters, California, US	5	2008–2015
Davis, California, US	4	1992–1996