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Inventor

D. Bruce Campbell

Inventor
Mount Pearl, CA

Overview

4→
Patents
1997–2021
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 4 as inventor

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

B05Bprimary
B05BSpraying apparatus13%
F04BPositive-displacement machines for liquids13%
F16KValves13%
G06FElectric digital data processing13%
G06TImage data processing or generation, in general13%
H04LTransmission of digital information, e.g. telegraphic communication13%
LOC0713%
Y10TTechnical subjects covered by former us classification13%
PatentTitleYear
10,989,316Dense phase pump with easily replaceable components202110,176,623Facilitation of depiction of geographic relationships via a user interface2019D0406217'Bottle rack'1999D0377298'Bottle rack'1997

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1997–1999Patents assigned to CAMPBELL D BRUCE (2)· patent assignee history
1997–1999Based in Mount Pearl, CA· patent location history
2019Patents assigned to TIC TALKING HOLDINGS INC (1)· patent assignee history
2019Based in Victoria, CA· patent location history
2021Patents assigned to NORDSON CORP (1)· patent assignee history
2021Based in Huron, OH, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CAMPBELL D BRUCEself21997–1999
NORDSON CORP12021
TIC TALKING HOLDINGS INC12019
Locations
LocationPatentsSpan
Mount Pearl, CA21997–1999
Huron, OH, US12021
Victoria, CA12019