Clean Venture 21 Corporation

Calculating rank

USPTO Granted Patents = 4

% Expired Patents = 50.0

EPO Patents = 1

Forward Citations = 62

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12 inventors (with patents filed for the assignee):

Mikio Murozono (3 out of 10 patents)

Toshiyuki Nakamura (2 out of 17 patents)

Takeshi Hibino (2 out of 3 patents)

4. Noboru Mouri (2 out of 6 patents)

5. Young-tae Park (2 out of 2 patents)

6. Yoshiaki Kodani (2 out of 2 patents)

7. Yukio Yamaguchi (1 out of 14 patents)

8. Seiichi Isomae (1 out of 6 patents)

9. Masaki Miyazaki (1 out of 1 patent)

10. Kenji Kato (1 out of 1 patent)

11. Hideyuki Takakura (1 out of 4 patents)

12. Yoshihiro Hamakawa (1 out of 25 patents)

13. Young-Tae Park (0 patent)

4 patents: Sort by Forward Citations

1. 8597971 - Method for producing photovoltaic device and photovoltaic device (2013-12-03),

2. 8338690 - Method for producing photovoltaic device and photovoltaic device (2012-12-25),

3. 7189278 - Method and apparatus for producing semiconductor or metal particles (2007-03-13),

4. 6706959 - Photovoltaic apparatus and mass-producing apparatus for mass-producing spherical semiconductor particles (2004-03-16),

Company Overview

Clean Venture 21 Corporation is a leading provider of eco-friendly cleaning solutions for residential and commercial clients. We offer a range of green cleaning products and services to promote a healthier and more sustainable environment. Our team of experienced professionals is dedicated to delivering high-quality and reliable cleaning services that meet the needs of our customers. Contact us today to learn more about how Clean Venture 21 can help you maintain a clean and healthy living or working space.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

4 Patents

#808 in Osaka

#7,590 in Japan

Osaka, Japan

Clean Venture 21 Corporation

Forward Citations = 62

12 inventors:

Mikio Murozono (3 out of 10 patents)

Toshiyuki Nakamura (2 out of 17 patents)

Takeshi Hibino (2 out of 3 patents)

4. Noboru Mouri (2 out of 6 patents)

5. Young-tae Park (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Clean Venture 21 Corporation. Retrieved from https://idiyas.com/company/clean-venture-21

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]

1 patent (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]