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Hayward, CA, United States of America

Ekc Technology Inc.

USPTO Granted Patents = 93

% Expired Patents = 38.7

EPO Patents = 2

Trademarks = 6

Forward Citations = 1,789

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100 inventors (with patents filed for the assignee):

Wai Mun Lee (41 out of 51 patents)

Robert J Small (25 out of 46 patents)

David J Maloney (9 out of 13 patents)

4. Xiqiang Yang (6 out of 34 patents)

5. Ajay Virkar (6 out of 36 patents)

6. Ross Henry Hill (6 out of 12 patents)

7. Tomoko Suzuki (5 out of 46 patents)

8. Hua Cui (5 out of 5 patents)

9. Charles U Pittman, Jr (5 out of 12 patents)

10. Toshitaka Hiraga (5 out of 5 patents)

11. Shihying Lee (5 out of 5 patents)

12. Bakul P Patel (5 out of 5 patents)

13. Michael A Fury (5 out of 8 patents)

14. Maria L Peterson (5 out of 10 patents)

15. Ying-Syi Li (4 out of 41 patents)

Core Competencies:

Cleaning Solutions

Etch Residue

Resist Stripping

Chemical Mechanical Planarization

Nanostructured Films

Photoresist

Copper Processing

Noble-Metal Coated

Transparent Conductive Layers

Alkanolamine

Fluoride Compositions

Metal Nanowire

93 patents: Sort by Forward Citations

1. 12747364 - Conductive composites, inks and adhesives with low silver nanowire loading and low resistivity, and methods for forming conductive features (2026-09-29),

2. 12568783 - Silver-based transparent conductive layers interfaced with copper traces and methods for forming the structures (2026-03-03),

3. 12407349 - Fused metal nanostructured networks, fusing solutions with reducing agents and methods for forming metal networks (2025-09-02),

4. 12394536 - Silver nanowire and noble-metal coated silver nanowire conductive polymer composites with low loading percolation conduction (2025-08-19),

5. 12264262 - Transparent films with control of light hue using nanoscale colorants (2025-04-01),

6. 12227661 - Method for processing metal nanowire ink with metal ions (2025-02-18),

7. 10155921 - Removal composition for selectively removing hard mask and methods thereof (2018-12-18),

8. 10005991 - Removal composition for selectively removing hard mask and methods thereof (2018-06-26),

9. 9972485 - Method and composition for removing resist, etch residue, and copper oxide from substrates having copper, metal hardmask and low-k dielectric material (2018-05-15),

10. 9481855 - Cleaning composition and method for cleaning a semiconductor device substrate after chemical mechanical polishing (2016-11-01),

11. 9257270 - Method and composition for removing resist, etch residue, and copper oxide from substrates having copper, metal hardmask and low-k dielectric material (2016-02-09),

12. 8951950 - Aluminum post-etch residue removal with simultaneous surface passivation (2015-02-10),

13. 8802609 - Nitrile and amidoxime compounds and methods of preparation for semiconductor processing (2014-08-12),

14. 8658583 - Method for making a photoresist stripping solution comprising an organic sulfonic acid and an organic hydrocarbon solvent (2014-02-25),

15. 8062429 - Methods of cleaning semiconductor devices at the back end of line using amidoxime compositions (2011-11-22),

Ekc Technology Inc., based in Hayward, California, specializes in advanced semiconductor cleaning solutions. The company focuses on critical processes such as etch residue removal, resist stripping, and chemical mechanical planarization, which are essential for the fabrication of high-performance semiconductor devices. With expertise in nanostructured films and copper processing, Ekc Technology is dedicated to providing innovative cleaning technologies that enhance manufacturing efficiency and product quality in the semiconductor industry.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

93 Patents

#3 in Hayward, CA

#942 in California

#4,023 in US

#8,271 in the World

Hayward, CA, United States of America

Ekc Technology Inc.

Forward Citations = 1,789

100 inventors:

Wai Mun Lee (41 out of 51 patents)

Robert J Small (25 out of 46 patents)

David J Maloney (9 out of 13 patents)

4. Xiqiang Yang (6 out of 34 patents)

5. Ajay Virkar (6 out of 36 patents)

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