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LI YIAN

Overview
  • Total Patents
    15
  • GoodIP Patent Rank
    119,225
  • Filing trend
    ⇩ 100.0%
About

LI YIAN has a total of 15 patent applications. It decreased the IP activity by 100.0%. Its first patent ever was published in 2013. It filed its patents most often in China. Its main competitors in its focus markets civil engineering are PENG ZHAO, SMALL FRANCIS GORDON and JIANG FANGRONG.

Patent filings in countries

World map showing LI YIANs patent filings in countries
# Country Total Patents
#1 China 15

Patent filings per year

Chart showing LI YIANs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Civil engineering

Focus technologies

# Technology
#1 Construction of roads

Top inventors

# Name Total Patents
#1 Li Yian 5

Latest patents

Publication Filing date Title
CN107893349A Five two layers of fork in the road viaduct
CN107761494A Two layers of crossroad viaduct
CN107503255A Four layers of crossroad viaduct
CN107326763A Crossroad is not turned left sweep viaduct
CN107326762A Five forks in the road " two " font viaduct
CN107326761A The five bridge floor viaducts of fork in the road three
CN107558316A The five bridge floor viaducts of fork in the road four
CN107476152A The font viaduct of crossroad two
CN107503254A The bridge floor viaduct of crossroad four
CN107345382A The bridge floor viaduct of crossroad three
CN105297567A Five-fork intersection two-layer structure overpass
CN105256678A Crossroad four-plane flyover
CN105256680A Double-layer-structure overpass at crossroad
CN105256679A Five-fork four-deck flyover
CN103343499A Overpass with structure having three bridge surfaces and four layers