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For the Inventor, By the Inventor

Tianjin, China

Zengjun Li

USPTO Granted Patents = 6 

 

Average Co-Inventor Count = 3.1

ph-index = 1

Forward Citations = 2(Granted Patents)


Company Filing History:

goldMedal6 out of 10 
 
Cccc First Harbor Engineering Co., Ltd.
 patents

Years Active: 2020-2025

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6 patents (USPTO):Explore Patents
1. 12448089 - Top-lock pull-out type connecting device and immersed tube construction ship (2025-10-21),
2. 12215470 - Water replacement type storage field construction method and storage field (2025-02-04),
3. 11674283 - Semi-submersible immersed tube transportation and installation integrated ship and construction process (2023-06-13),
4. 11655608 - Water stopping device of suspension and sliding type and an application thereof (2023-05-23),
5. 10836459 - Self-propelled integrated ship for transporting and installing immersed tubes of underwater tunnel and construction process (2020-11-17),
6. 10781567 - Foundation treatment method for piling foundation structure by penetrating hardpan layer (2020-09-22),
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