Inventor
YAN HAOWEN
CN6 patents
⚠️ This page may combine multiple inventors who share the name “YAN HAOWEN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
UNIV LANZHOU JIAOTONG
5 patentsUS12158928B1Dec 3, 2024
Commutative encryption and watermarking method based on chaotic system and zero watermark for vector geospatial data
UNIV LANZHOU JIAOTONG5 citations69
US12073486B1Aug 27, 2024
Reversible watermarking method for oblique photography three-dimensional models with controllable accuracy
UNIV LANZHOU JIAOTONG1 citations56
US12412337B1Sep 9, 2025
Method for multi-scale digital elevation model generation based on curvature wavelet transform
UNIV LANZHOU JIAOTONG0 citations45
US12118767B1Oct 15, 2024
Classification method based on skeleton lines for map building shapes
UNIV LANZHOU JIAOTONG0 citations45
US12400050B2Aug 26, 2025
Graph convolution auto-encoder based multi-scale method for computing road network similarity
UNIV LANZHOU JIAOTONG0 citations42