Inventor
DUAN JIANLIANG
CN13 patents
⚠️ This page may combine multiple inventors who share the name “DUAN JIANLIANG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SHINDA TANGSHAN CREATIVE OIL & GAS EQUIP CO LTD
12 patentsUS11428055B2Aug 30, 2022
Multichannel composite coiled tubing
SHINDA TANGSHAN CREATIVE OIL & GAS EQUIP CO LTD2 citations71
US11703153B2Jul 18, 2023
Encapsulated tubular cable with colorized identification strap, and preparation method thereof
SHINDA TANGSHAN CREATIVE OIL & GAS EQUIP CO LTD0 citations60
US11220892B2Jan 11, 2022
Tubing for electric submersible pumps used in oil production
SHINDA TANGSHAN CREATIVE OIL & GAS EQUIP CO LTD1 citations60
US11195641B2Dec 7, 2021
Electric-submersible-pump composite duct cable and manufacturing method thereof
SHINDA TANGSHAN CREATIVE OIL & GAS EQUIP CO LTD0 citations60
US12095240B2Sep 17, 2024
Pneumatic stripping tool
SHINDA TANGSHAN CREATIVE OIL & GAS EQUIP CO LTD0 citations50
US11885068B2Jan 30, 2024
Encapsulated duct cable with identification tags and manufacturing method thereof
SHINDA TANGSHAN CREATIVE OIL & GAS EQUIP CO LTD0 citations50
US11268165B2Mar 8, 2022
Homogenization process for coiled tubing
SHINDA TANGSHAN CREATIVE OIL & GAS EQUIP CO LTD0 citations49
US10948121B2Mar 16, 2021
Super-long thermal insulation steel jacket pipe and machining process thereof
SHINDA TANGSHAN CREATIVE OIL & GAS EQUIP CO LTD0 citations49
US11674386B2Jun 13, 2023
Logging encapsulated optical-fiber duct cable and manufacturing method thereof
SHINDA TANGSHAN CREATIVE OIL & GAS EQUIP CO LTD0 citations48
US11473717B2Oct 18, 2022
Ultra-long thermally insulated pipeline and forming method thereof
SHINDA TANGSHAN CREATIVE OIL & GAS EQUIP CO LTD0 citations48
US12515364B2Jan 6, 2026
Method for stripping encapsulation layer of cable
SHINDA TANGSHAN CREATIVE OIL & GAS EQUIP CO LTD0 citations43
US12076699B2Sep 3, 2024
Integrated composite overload injection system and working method thereof
SHINDA TANGSHAN CREATIVE OIL & GAS EQUIP CO LTD0 citations36