Inventor
LI GUOYU
CN9 patents
⚠️ This page may combine multiple inventors who share the name “LI GUOYU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NORTHWEST INSTITUTE ECO ENVIRONMENT & RESOURCES CAS
8 patentsUS12084973B1Sep 10, 2024
Blockage-proof water diversion and drainage devices for highway tunnel construction
NORTHWEST INSTITUTE ECO ENVIRONMENT & RESOURCES CAS11 citations82
US11892101B1Feb 6, 2024
Anti-frost heaving supports and methods for crude oil pipelines crossing permafrost regions
NORTHWEST INSTITUTE ECO ENVIRONMENT & RESOURCES CAS6 citations73
US12055533B1Aug 6, 2024
Monitoring devices for methane gas in hot thaw lake ponds in tundra regions
NORTHWEST INSTITUTE ECO ENVIRONMENT & RESOURCES CAS3 citations68
US12065797B1Aug 20, 2024
Rod-type pile foundation for preventing pile body from being heaved and operating method thereof
NORTHWEST INSTITUTE ECO ENVIRONMENT & RESOURCES CAS5 citations67
US12085212B1Sep 10, 2024
Pipeline support devices for preventing melting and sinking based on gas heat exchange
NORTHWEST INSTITUTE ECO ENVIRONMENT & RESOURCES CAS1 citations60
US11891771B1Feb 6, 2024
Devices for preventing frost heaving and thawing settlement
NORTHWEST INSTITUTE ECO ENVIRONMENT & RESOURCES CAS1 citations58
US12509843B1Dec 30, 2025
Transmission line tower base with electrothermal air-blowing anti-frost heave function for permafrost regions
NORTHWEST INSTITUTE ECO ENVIRONMENT & RESOURCES CAS0 citations44
US12448751B1Oct 21, 2025
Anti-frost heave pile foundation support device
NORTHWEST INSTITUTE ECO ENVIRONMENT & RESOURCES CAS0 citations41