Inventor
YAN GUOMIN
CN6 patents
⚠️ This page may combine multiple inventors who share the name “YAN GUOMIN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HANGZHOU KELONG ELECTRIC DEVICES CO LTD
3 patentsUS12502757B2Dec 23, 2025
Intelligent identification apparatus and method for nail gun punch needle
HANGZHOU KELONG ELECTRIC DEVICES CO LTD0 citations55
US12440950B2Oct 14, 2025
Intelligent identification apparatus and method for nail gun punch needle
HANGZHOU KELONG ELECTRIC DEVICES CO LTD0 citations55
US11981006B2May 14, 2024
Nail gun punching needle clutch mechanism
HANGZHOU KELONG ELECTRIC DEVICES CO LTD0 citations45
UNIV CHINA PETROLEUM EAST CHINA
2 patentsUS9605499B1Mar 28, 2017
Subsea wellhead pressure indicating and automatic adjusting device for deep-water dual-gradient drilling
UNIV CHINA PETROLEUM EAST CHINA12 citations82
US9631450B2Apr 25, 2017
Surface layer conductor running tool for deep-water well drilling
UNIV CHINA PETROLEUM EAST CHINA2 citations69