Inventor
ZHANG QINGHAI
US8 patents
⚠️ This page may combine multiple inventors who share the name “ZHANG QINGHAI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TIANJIN QINGQUAN PET PRODUCTS CO LTD
5 patentsUSD825117SAug 7, 2018
Cat scratcher
TIANJIN QINGQUAN PET PRODUCTS CO LTD8 citations79
USD869784SDec 10, 2019
Cat maze
TIANJIN QINGQUAN PET PRODUCTS CO LTD2 citations68
USD836857SDec 25, 2018
Cat scratcher
TIANJIN QINGQUAN PET PRODUCTS CO LTD2 citations68
USD825118SAug 7, 2018
Cat scratcher
TIANJIN QINGQUAN PET PRODUCTS CO LTD2 citations68
USD836856SDec 25, 2018
Cat scratcher
TIANJIN QINGQUAN PET PRODUCTS CO LTD0 citations47