TopEng Inc.

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Oakville, CA

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Patents Applicationslast 30 patents

Information Patent Application
Tunnel Extraction Machine (TEM)
- Publication number 20240076983
- Publication date Mar 7, 2024
- TopEng Inc.
- Behzad Khorshidi
- E21 - EARTH DRILLING MINING
Information Patent Application
System and method for simultaneous excavation and segment erection...
- Publication number 20230332504
- Publication date Oct 19, 2023
- TopEng Inc.
- Behzad Khorshidi
- E21 - EARTH DRILLING MINING
Information Patent Application
Helical segmental lining
- Publication number 20190257202
- Publication date Aug 22, 2019
- TopEng Inc.
- Behzad Khorshidi
- E21 - EARTH DRILLING MINING