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Inventor

John Dasilva

Inventor
Prince George, CA

Overview

2→
Patents
2012
Patent span
Physics
Primary field (CPC G)

Patents· 2 as inventor

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

B66Fprimary
B66FHoisting, lifting, hauling or pushing, not otherwise provided for, e.g. devices which apply a lifting or pushing force directly to the surface of a load29%
F16PSafety devices in general29%
G01VGeophysics14%
G07CTime or attendance registers14%
G08BSignalling systems, e.g. personal calling systems14%
PatentTitleYear
8,248,263'Personnel safety utilizing time variable frequencies'20128,115,650'Radio frequency identification based personnel safety system'2012

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2012Patents assigned to DASILVA JOHN (2)· patent assignee history
2012Patents assigned to SHERVEY RICHARD CLAYTON (2)· patent assignee history
2012Patents assigned to CHAMSEDDINE AHMAD (1)· patent assignee history
2012Patents assigned to HAUBRICH PETER (1)· patent assignee history
2012Patents assigned to PSST MOBILE EQUIPMENT LTD RICHARD SHERVEY (1)· patent assignee history
2012Based in Prince George, CA· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DASILVA JOHNself22012
SHERVEY RICHARD CLAYTON22012
CHAMSEDDINE AHMAD12012
HAUBRICH PETER12012
PSST MOBILE EQUIPMENT LTD RICHARD SHERVEY12012
Locations
LocationPatentsSpan
Prince George, CA22012