Waterworks Technology Development Organization

Calculating rank

USPTO Granted Patents = 2

Forward Citations = 7

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4 inventors (with patents filed for the assignee):

Yasuyuki Nagamori (1 out of 5 patents)

Hisakazu Asai (1 out of 2 patents)

Kiyoharu Nakano (1 out of 1 patent)

4. Haruhiko Shimizu (1 out of 2 patents)

2 patents: Sort by Forward Citations

1. 12601438 - Sluice valve installation method, and sluice valve installation structure used in sluice valve installation method (2026-04-14),

2. 7819384 - Gate valve device (2010-10-26),

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USPTO Data Jan 1 1976 - Oct 27 2026

2 Patents

#1,148 in Osaka

#11,147 in Japan

Osaka, Japan

Waterworks Technology Development Organization

Forward Citations = 7

4 inventors:

Yasuyuki Nagamori (1 out of 5 patents)

Hisakazu Asai (1 out of 2 patents)

Kiyoharu Nakano (1 out of 1 patent)

4. Haruhiko Shimizu (1 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Waterworks Technology Development Organization. Retrieved from https://idiyas.com/company/waterworks-technology-development-organization

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]