EPO Patents = 4

Forward Citations = 1

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2 inventors (with patents filed for the assignee):

Hwee Hong Chew (5 out of 14 patents)

Poh Kwee Ong (5 out of 5 patents)

5 patents: Sort by Forward Citations

1. 10858268 - Method and system for applying superimposed time-varying frequency electromagnetic wave to target object or target region (2020-12-08),

2. 10807886 - Method and system for applying superimposed time-varying frequency electromagnetic wave for corrosion protection of submerged and/or buried structures (2020-10-20),

3. 10561986 - Method and system for applying superimposed time-varying frequency electromagnetic wave to water to effect various treatment functions (2020-02-18),

4. 10532318 - Method and system for applying superimposed time-varying frequency electromagnetic wave for marine ballast water bio-fouling control (2020-01-14),

5. 10500542 - Method and system for applying superimposed time-varying frequency electromagnetic wave for removal of SO, COand NOfrom flue gases (2019-12-10),

Company Overview

Semb-eco R&d Pte Ltd is a leading research and development company specializing in sustainable and eco-friendly solutions. We are committed to creating innovative technologies and products that help protect the environment and promote sustainability. Our team of experts focuses on developing cutting-edge solutions in various industries such as renewable energy, waste management, and green building materials. Visit our website to learn more about our projects and collaborations.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

5 Patents

#338 in Singapore

Singapore, Singapore

Semb-Eco R&d Pte Ltd

Forward Citations = 1

2 inventors:

Hwee Hong Chew (5 out of 14 patents)

Poh Kwee Ong (5 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Semb-Eco R&d Pte Ltd. Retrieved from https://idiyas.com/company/semb-eco-r-and-d

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

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]

4 patents (EPO):

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]