Inventor

Guangjin Li

Inventor

Guilin, CN

Overview

2002–2021

Patent span

Physics

Primary field (CPC G)

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

B41Jprimary

B41JTypewriters13%

C09DCoating compositions, e.g. paints, varnishes or lacquers13%

G01CMeasuring distances, levels or bearings13%

G01DMeasuring not specially adapted for a specific variable13%

LOC1013%

Y10TTechnical subjects covered by former us classification13%

B09CReclamation of contaminated soil7%

C08JWorking-up7%

F28DHeat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact7%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

2002Based in Singapore, SG· patent location history

2007–2009Patents assigned to HEWLETT PACKARD DEVELOPMENT CO (4)· patent assignee history

2007–2009Based in San Diego, CA, US· patent location history

2008–2009Patents assigned to GUILIN GEMRED SENSOR TECHNOLOG (3)· patent assignee history

2008–2012Based in Guilin, CN· patent location history

2010–2012Patents assigned to LI GUANGJIN (2)· patent assignee history

2011–2012Patents assigned to GUILIN GEMRED SENSOR TECHNOLOGY LTD (2)· patent assignee history

2021Patents assigned to ASIA VITAL COMPONENTS CO LTD (1)· patent assignee history

2021Based in Beijing, CN· patent location history

2021Based in New Taipei, TW· patent location history

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HEWLETT PACKARD DEVELOPMENT CO	4	2007–2009
GUILIN GEMRED SENSOR TECHNOLOG	3	2008–2009
GUILIN GEMRED SENSOR TECHNOLOGY LTD	2	2011–2012
LI GUANGJINself	2	2010–2012
ASIA VITAL COMPONENTS CO LTD	1	2021

Locations