Inventor
Shao Hwa Lee
Inventor
Singapore, SG
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling27%
H03BGeneration of oscillations, directly or by frequency-changing, by circuits employing active elements which operate in a non-switching manner20%
H03KPulse technique13%
H03LAutomatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses13%
B41JTypewriters7%
F16HGearing7%
F16LPipes7%
LOC187%
PatentTitleYear
10,577,872Curbed links for wiring conduit20209,890,611'Electromechanical device for engaging shiftable keys of downhole tool'20189,840,891'Electromechanical shifting tool'20179,797,205'Collapsible wiring conduit for downhole linear actuator'20178,540,442'Adjustable print media path system and method'2013D0660905'Printer device'20127,705,686'Injection-locked frequency divider'20107,557,668'Injection-locked frequency divider'20097,522,007'Injection locked frequency divider'20097,522,008'Injection locker frequency divider'2009Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2009–2010Patents assigned to UNIV NAT TAIWAN SCIENCE TECH (4)· patent assignee history
2009–2010Based in Taipei, TW· patent location history
2012–2013Patents assigned to BRADY WORLDWIDE INC (2)· patent assignee history
2012–2013Patents assigned to LEE SHAO HWA (2)· patent assignee history
2012–2013Patents assigned to TAN SOON LING (2)· patent assignee history
2012–2020Based in Singapore, SG· patent location history
2017–2020Patents assigned to HALLIBURTON ENERGY SERVICES INC (4)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HALLIBURTON ENERGY SERVICES INC | 4 | 2017–2020 |
| UNIV NAT TAIWAN SCIENCE TECH | 4 | 2009–2010 |
| BRADY WORLDWIDE INC | 2 | 2012–2013 |
| LEE SHAO HWAself | 2 | 2012–2013 |
| TAN SOON LING | 2 | 2012–2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Singapore, SG | 6 | 2012–2020 |
| Taipei, TW | 4 | 2009–2010 |