Inventor

Andrew L. Tsang

Inventor

Lowell, MA, US

Overview

6→

Patents

2017–2021

Patent span

Electricity

Primary field (CPC H)

Patents· 6 as inventor

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

G08Bprimary

G08BSignalling systems, e.g. personal calling systems20%

H01HElectric switches20%

H03KPulse technique20%

G05BControl or regulating systems in general16%

C09KMaterials for miscellaneous applications, not provided for elsewhere4%

F21KNon-electric light sources using luminescence4%

F21VFunctional features or details of lighting devices or systems thereof4%

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 emitted4%

G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure4%

H10HInorganic light-emitting semiconductor devices having potential barriers4%

PatentTitleYear

11,075,046Safety switch and associated methods2021 10,920,135Preparation method of an LED illuminating device2021 10,665,412Safety switch and associated methods2020 10,304,648Safety switch and associated methods2019 10,072,997Safety switch with imbalance test2018 9,824,841'Safety switch and associated methods'2017

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2017–2021Patents assigned to ROCKWELL AUTOMATION TECH INC (5)· patent assignee history

2017–2021Based in Lowell, MA, US· patent location history

2021Patents assigned to SHENZHEN YMH INTELLIGENT TECH CO LTD (1)· patent assignee history

2021Based in Guangdong, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
ROCKWELL AUTOMATION TECH INC	5	2017–2021
SHENZHEN YMH INTELLIGENT TECH CO LTD	1	2021

Locations

Location	Patents	Span
Lowell, Massachusetts, US	5	2017–2021
Guangdong, CN	1	2021