国家/地区 中国（41） 世界知识产权组织（8） 美国（7） 加拿大（3） 韩国（3） 欧洲专利局（EPO）（2）
IPC部 F（49）
IPC大类 F16（49） C08（16） B29（10）
B32（10） C09（7） F17（4）
F28（3） H05（3） B22（2）
B23（2） C22（2） F24（2）
IPC小类 F16L（49）
IPC F16L059/02（12） C08K003/04（11） F16L009/12（10）
B32B001/08（9） F16L009/14（8） F16L057/02（8）
F16L058/10（7） C08L023/06（6） B29D023/00（5）
B32B027/32（5） F16L053/38（5） F16L057/06（5）
F16L058/04（5） B32B027/18（4） C08K009/02（4）
发明人 HUO F（4） WANG L（4） LIANG Y（3）
RAYNEL G R J（3） SONG Q（3） VILLETTE T T（3）
WANG J（3） BANERJI A（2） CHU Z（2）
DOBLE C（2） FENG J（2） JIN J（2）
LI H（2） LI J（2） LI Y（2）
公开年 2022（49）
申请年 2022（27）  2021（16）  2020（6） 
专利权人 LINHAI WEIXI.（4） ARAMCO SERVI.（3） SAUDI ARABIA.（3） ZHEJIANG WEI.（3）
MARTINREA IN.（2） RIFENG ENTER.（2） RIFENG TECHN.（2）

Hose for molding apparatus, comprises core tube having conveying space for receiving and guiding molten polymer, heating device for maintaining molten polymer in molten state, and layers arranged around core tube and on top of one another.

GOLFIERI D, GUIDETTI G, MAZZA R M, STAGLIANO A, AKESSON B, HAHNE M

Pipeline gas water seal and condensed water discharging device comprises gas pipeline, water storage tank and warm air device for preventing water from icing, where lower end surface of gas pipeline is equipped with condensed water pipe.

WU D

Air conditioner radiating copper pipe, has pipe body provided with heat exchange groove and surface of pipe body is provided with graphene anti-oxidant layer.

FANG Y

Double insulation type self-limiting temperature heating cable used in electric heating element, comprises two parallel metal wire cores whose outside is covered with PTC material layer, where PTC material layer is covered with inner insulating layer and flame-retardant outer insulating layer.

JI C

Prefabricated directly-buried integrated insulating pipe with anti-corrosion function, has head of screw thread rod is rotatably connected with back of movable sleeve ring through bearing and operating handle is locked and installed.

ZHOU X, ZHAO H, LIU G

Pipeline conversion joint with long service life and corrosion resistance for conveying gas, has joint main portion whose surface is fixedly connected with outer anti-corrosion layer and whose inner wall is connected with inner layer.

LI J

Rubber tube useful for underground hydraulic transmission, comprises e.g. inner rubber layer set inside composite layer and outer rubber layer set outside composite layer, where metal weaving layer is compounded on middle rubber layer, and outer rubber layer is compounded on metal weaving layer.

WANG Y, HU X, HAN W, JIA X, LIU G, LI X

Specific pressure-resistant protective stainless steel pipe for use as furniture kitchenware, has main body inserted and connected with screw rod through screw thread groove, where screw rod is limited and set in connecting sleeve.

HU Q, DUAN C

Fiber reinforced plastic electro-fusion pipe with independent control of mechanical performance and electrical performance comprises electric melting pipe main body embedded with resistance wire, and provided with two binding posts respectively connected to two ends of resistance wire.

HU Z, ZHENG J, SHI J, YAO R

Modified core-shell masterbatch toughened polypropylene random copolymer (PPR) pipe comprises tube body comprising outer layer, middle layer and inner layer, where outer layer comprises PPR resin, modified nano-calcium carbonate and dispersant.

MO Y, LU Z, LI Y, LI H, SHI K, LIANG Y, LAN J