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For the Inventor, By the Inventor

Penang, Malaysia

Chee Foo Lum

This inventor holds 16 USPTO granted patents and 2 published patent applications, primarily in Optical Encoders. Top assignees: Avago Technologies Ecbu IP (Singapore) Pte. Ltd., Avago Technologies Ecbu IP Pte. Ltd., Avago General IP Pte Ltd. Active years: 2007-2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Chee Foo Lum. Retrieved from https://idiyas.com/inventor/chee-foo-lum

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank
USPTO Granted Patents = 16 

% Patents Active = 37.5

Average Co-Inventor Count = 3.4

ph-index = 4

Forward Citations = 156(Granted Patents)


Location History:

  • Bayan Lepas, MY (2013)
  • Penang, MY (2007 - 2023)

Company Filing History:

goldMedal9 out of 497 
 
Avago Technologies Ecbu IP (Singapore) Pte. Ltd.
 patents
silverMedal2 out of 50 
 
Avago Technologies Ecbu IP Pte. Ltd.
 patents
bronzeMedal1 out of 1 
 
Avago General IP Pte Ltd
 patent
4. 1 out of 1,813 
 
Avago Technologies General IP (Singapore) Pte. Ltd.
 patents
5. 1 out of 55 
 
Avago Technologies General IP Pte, Ltd.
 patents
6. 1 out of 601 
 
Keysight Technologies, Inc.
 patents
7. 1 out of 1,512 
 
Pixart Imaging Incorporated
 patents

Years Active: 2007-2023

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Areas of Expertise:
Coaxial Cable Coupling
Optical Finger Navigation
Backlighting
Jog Wheel
Spiral Coding Element
Integrated Monitor
User Navigation Device
Position Track
Index Track
Photodetector Output
Patterned Mask
Three-Dimensional Code Carrier
16 patents (USPTO):Explore Patents
1. 11742612 - Adiabatic coaxial cable coupling (2023-08-29),
2. 9619047 - Optical finger navigation device (2017-04-11),
3. 8605035 - Backlighting for optical finger navigation (2013-12-10),
4. 8247758 - Optical jog wheel with spiral coding element (2012-08-21),
5. 8068040 - Optical encoder with integrated monitor (2011-11-29),
6. 7732756 - User navigation device with a code wheel and an encoder (2010-06-08),
7. 7675026 - Optical jog wheel with spiral coding element (2010-03-09),
8. 7619210 - Encoder with a combined position and index track (2009-11-17),
9. 7619209 - Encoder with a combined position and index track (2009-11-17),
10. 7507950 - Encoder with a combined position and index track (2009-03-24),
11. 7449677 - Optical encoder (2008-11-11),
12. 7400269 - Coding element with integrated limit switch (2008-07-15),
13. 7399956 - Optical encoder with sinusoidal photodetector output signal (2008-07-15),
14. 7378643 - Optical projection encoder with patterned mask (2008-05-27),
15. 7358481 - Reflective encoder with three-dimensional code carrier (2008-04-15),

Title: Chee Foo Lum: Innovator in Coaxial Technology and Optical Navigation

Introduction

Chee Foo Lum is a distinguished inventor based in Penang, Malaysia, known for his significant contributions to technology through his innovative patents. With a total of 16 patents to his name, Lum has made a notable impact in the fields of coaxial cable technology and optical navigation devices.

Latest Patents

Among his latest inventions is the adiabatic coaxial cable coupling, which features a chassis and a planar transmission line with first and second ends. This innovative connector includes a first coaxial-to-planar transition and a second coaxial-to-planar transition, enhancing the efficiency of coaxial cable connections. Another remarkable invention is the optical finger navigation device, designed for handheld portable devices. This device incorporates a light source, a sensor, and a lens holder integrated with a light guide system, allowing for precise navigation through a slanted wall coated with a light reflective material.

Career Highlights

Chee Foo Lum has worked with prominent companies such as Avago Technologies Ecbu IP (Singapore) Pte. Ltd. and Avago Technologies Ecbu IP Pte. Ltd. His work in these organizations has contributed to the advancement of technology in the fields he specializes in.

Collaborations

Throughout his career, Lum has collaborated with talented individuals, including Weng Fei Wong and Siang Leong Foo, further enhancing his innovative projects and contributions to technology.

Conclusion

Chee Foo Lum's inventive spirit and dedication to technology have led to significant advancements in coaxial and optical navigation technologies. His work continues to inspire future innovations in these fields.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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