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Inventor

William F. Dempster

Inventor
Oracle, AZ, US

Overview

5→
Patents
1992–1995
Patent span
General tagging of new technological developments
Primary field (CPC Y)

Patents· 5 as inventor

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

Y02Aprimary
Y02ATechnologies for adaptation to climate change23%
A01GHorticulture15%
E04DRoof coverings15%
A61LMethods or apparatus for sterilising materials or objects in general8%
B01DSeparation8%
F16BDevices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges8%
F24FAir-conditioning8%
Y02PClimate change mitigation technologies in the production or processing of goods8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
PatentTitleYear
5,377,458'Pressure balancing a closed ecological system'19955,279,081'Pressure balancing a closed ecological system'19945,277,877'Room air purifier'19945,177,921'Low leakage glazing system'19935,138,820'Low leakage glazing system for space frame structures'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–1993Patents assigned to SPACE BIOSPHERES VENTURE (2)· patent assignee history
1992–1995Based in Oracle, AZ, US· patent location history
1994Patents assigned to SPACE BIOSPHERES VENTURES (2)· patent assignee history
1995Patents assigned to DECISIONS TEAM INC (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SPACE BIOSPHERES VENTURE21992–1993
SPACE BIOSPHERES VENTURES21994
DECISIONS TEAM INC11995
Locations
LocationPatentsSpan
Oracle, AZ, US51992–1995