Inventor

Randall Joel Lonsdale

Inventor

Beaverton, OR, US

Overview

7→

Patents

1987–2021

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 7 as inventor

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

A61Bprimary

A61BDiagnosis14%

A61CDentistry14%

F21KNon-electric light sources using luminescence14%

F21VFunctional features or details of lighting devices or systems thereof14%

F21WIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to uses or applications of lighting devices or systems14%

F21YIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to the form or the kind of the light sources or of the colour of the light emitted14%

G02BOptical elements, systems or apparatus14%

G06KGraphical data reading5%

PatentTitleYear

11,092,310Dental light using LEDs2021 10,390,690Dental light using LEDs2019 10,070,779Dental light using LEDs2018 9,833,133Dental light using LEDS2017 9,500,340'Dental light using LEDs'2016 4,786,798'Beam forming and collection lens assembly for laser scanner system'1988 4,678,288'Trifocal lens for a laser instrument'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–1988Patents assigned to SPECTRA PHYSICS (2)· patent assignee history

1987–1988Based in Eugene, OR, US· patent location history

2016–2017Patents assigned to A-DEC INC (2)· patent assignee history

2016Patents assigned to ALVAREZ JASON (1)· patent assignee history

2016Patents assigned to BERRY PATRICK W (1)· patent assignee history

2016–2021Based in Beaverton, OR, US· patent location history

2018–2021Patents assigned to A DEC INC (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
A DEC INC	3	2018–2021
A-DEC INC	2	2016–2017
SPECTRA PHYSICS	2	1987–1988
ALVAREZ JASON	1	2016
BERRY PATRICK W	1	2016

Locations

Location	Patents	Span
Beaverton, OR, US	5	2016–2021
Eugene, OR, US	2	1987–1988