Serial Number

File Name

A

International Patent Certificate

PCT (India) Tubular Film Evaporator 333956

Within the validity period

1

Invention Patent Certificate

1-1

An oxidation system for hydrogen peroxide production (201010160040.4)

Within the validity period

1-2

A hydrogenation system for hydrogen peroxide production (201010160053.1)

Within the validity period

1-3

Tubular Thin-Film Evaporator (201010126514.3)

Within the validity period

1-4

High-Viscosity Self-Cleaning Reactor (201010110591.x)

Within the validity period

1-5

Vertical Non-Stirred Polycondensation Reactor (201310017156.6)

Within the validity period

1-6

An esterification polymerization reaction system (201610097832.9)

Within the validity period

1-7

An esterification reaction system (201610061902.5)

Within the validity period

1-8

An esterification polymerization two-reactor apparatus (201610253259.6)

Within the validity period

1-9

An esterification polymerization apparatus (201610253261.3)

Within the validity period

1-10

A vertical, stirrer-free polymerization reactor (201610061901.0)

Within the validity period

1-11

An esterification polymerization two-tank system (201610097833.3)

Within the validity period

1-12

Vertical Esterification Pre-Polycondensation Reactor and Method for Esterification Pre-Polycondensation (201610097835.2)

Within the validity period

1-13

Esterification-Polymerization Integrated Reactor Tower (201610253266.6)

Within the validity period

1-14

A polymer adhesion-enhancing reactor (201610952600.7)

Within the validity period

1-15

A two-chamber polymer adhesion-enhancing reactor (201610952524.X)

Within the validity period

1-16

A two-chamber dual-rotor polymer reactor (201610952523.5)

Within the validity period

1-17

High-Capacity Nylon Polymerization System (202010343083.X)

Within the validity period

1-18

A continuous production system and method for lactide (202110967029.7)

Within the validity period

2

Utility Model Patent Certificate

2-1

A stirrer with heat-exchange functionality for polyacrylonitrile polymerization, Patent No. 201320026695.1

Within the validity period

2-2

A horizontal mixer, Patent No. 201320026737.1

Within the validity period

2-3

Continuous Polymerization Reactor for Nylon 66, Patent No. 201420486415.X

Within the validity period

2-4

Recycling System for Process Steam from the Polymerization Production Line, 201420498610.4

Within the validity period

2-5

A thermal medium circulation heating system, Patent No. 201520616613.8

Within the validity period

2-6

A vertical polymerization reactor, ZL 201620089815.6

Within the validity period

2-7

An automatic bag-breaking feeding hopper, Patent No. 201520554842.1

Within the validity period

2-8

An automatically stirred esterification reactor, 201620089813.7

Within the validity period

2-9

A polymer cracking reaction apparatus, Patent No. 201620078570.7

Within the validity period

2-10

A tackifying system for a high-viscosity polymer, Patent No. 201621161649.2

Within the validity period

2-11

A rotating discharge device 201621162577.3

Within the validity period

2-12

A two-chamber polymer adhesion-enhancing reactor, Patent No. 201621161650.5

Within the validity period

2-13

A polymer adhesion-enhancing reactor 201621157536.5

Within the validity period

2-14

A two-chamber polymer adhesion-enhancing reactor, Patent No. 201621176639.6

Within the validity period

2-15

A distillation and recovery apparatus for tetrahydrofuran, Patent No. 201621135789.2

Within the validity period

2-16

A polymer adhesion-enhancing reactor, Patent No. 201621178872.8

Within the validity period

2-17

A dual-rotor polymer viscosity-enhancing reactor, 201621178903.X

Within the validity period

2-18

A two-chamber, dual-rotor polymer reactor, Patent No. 201621177103.6

Within the validity period

February 19

A dual-rotor polymerization reactor 201621162576.9

Within the validity period

2-20

A waste filament screw conveyor, Patent No. 201621464890.2

Within the validity period

2-21

A rotating drum heating and mixing device, 201621445832.5

Within the validity period

2-22

A drum-type mixing and thickening device, Patent No. 201621446314.5

Within the validity period

2-23

A polymer mixing and drying apparatus, 201621446315.X

Within the validity period

2-24

A heat-stable thermal fluid heating system, Patent No. 201720213021.0

Within the validity period

2-25

A polymer monomer removal device, Patent No. 201720213018.9

Within the validity period

February 26

1,4-Butanediol Purification Unit 201720213075.7

Within the validity period

2-27

Vacuum Spray System for PTT Production Unit, Patent No. 201720254938.5

Within the validity period

February 28

A vertical polymerization reactor 201720281716.2

Within the validity period

February 29

A horizontal esterification reactor, Patent No. 201720213020.6

Within the validity period

2-30

Nylon 66 Spinning Melt Pipeline System, Patent No. 201720254943.6

Within the validity period

February 31

A polycondensation reactor 201720282040.9

Within the validity period

2-32

Fluidized Bed Hydrogenation System for Hydrogen Peroxide Production 201720695853.0

Within the validity period

2-33

Fluidized Bed System for Hydrogen Peroxide Production, 201720695882.7

Within the validity period

2-34

A hydrogenation system for preparing hydrogen peroxide, 201720696739.X

Within the validity period

2-35

Hydrogenation Reactor for Hydrogen Peroxide Production via Fluidized Bed, 201720695844.1

Within the validity period

2-36

Hydrogenation reactor for hydrogen peroxide production, 201720696267.8

Within the validity period

2-37

An oxidation tower for preparing hydrogen peroxide, 201720696266.3

Within the validity period

2-38

An oxidation tower apparatus for producing hydrogen peroxide, Patent No. 201720696714.X

Within the validity period

2-39

A hydrogen peroxide production system, 201720696287.5

Within the validity period

2-40

Hydrogenation-Oxidation System for Hydrogen Peroxide Production, 201720696712.0

Within the validity period

2-41

Hydrogen Peroxide Production System Using the Anthraquinone Process, Patent No. 201720696750.6

Within the validity period

2-42

A viscosity-enhancing reactor, 201720507438.8

Within the validity period

2-43

Fluidized Bed Production System for Hydrogen Peroxide, Patent No. 201720696229.2

Within the validity period

2-44

Hydrogen Peroxide Production Unit – 201720696766.7

Within the validity period

2-45

Single-Removal Unit for Polyacrylonitrile Spinning Solution 201720953428.7

Within the validity period

2-46

High-Efficiency, Energy-Saving Semi-Continuous Nylon 66 Polymerization Unit – 201721000294.3

Within the validity period

2-47

A semi-continuous nylon 66 polymerization apparatus, Patent No. 201721009808.1

Within the validity period

2-48

A semi-continuous nylon 66 polymerization apparatus, Patent No. 201721009803.9

Within the validity period

2-49

Automatic Vent and Drain Device for Esterification Reaction, 201721246205.3

Within the validity period

2-50

A tetrahydrofuran low-boiling-point recovery device, 201820407672.8

Within the validity period

2-51

A polyester slurry preparation system, 201820407636.1

Within the validity period

2-52

A feeding system for a polyester reaction, 201820416848.6

Within the validity period

2-53

Polyester Reactor Slurry Sampling System, 201820416849.0

Within the validity period

2-54

A stable and smooth powder slurry mixing device – 201822182273.9

Within the validity period

2-55

A catalyst system for PBT production, 201920053234.0

Within the validity period

2-56

An esterification device for PBT, Patent No. 201920053188.4

Within the validity period

2-57

A pre-shrinking kettle for PET, Patent No. 201920053291.9

Within the validity period

2-58

A PBT Polycondensation Vacuum System, Patent No. 201920053189.9

Within the validity period

2-59

A PBT polycondensation apparatus, Patent No. 201920053294.2

Within the validity period

2-60

A PBT esterification reaction system, 201920053232.1

Within the validity period

2-61

A low-emission tetrahydrofuran recovery system, 201920415760.7

Within the validity period

2-62

A continuous tetrahydrofuran recovery device 201920415300.4

Within the validity period

2-63

A polyoxymethylene devolatilization system, 201821888188.8

Within the validity period

2-64

An unconventional falling-film tube, 201921853804.0

Within the validity period

2-65

Temperature Control System for Melt Gear Pumps, 201922264506.4

Within the validity period

2-66

Automatic Scraping System for Vertical Scraper Condenser, 201922249061.2

Within the validity period

2-67

Automatic Nylon Salt Solution Preparation and Dispensing Device 201922263637.0

Within the validity period

2-68

Fully Matte PET Masterbatch Formulation System – 202020371727.1

Within the validity period

2-69

A catalyst system for PBT production, Patent No. 202020372128.1

Within the validity period

2-70

Polyester Plant Process Off-Gas Treatment System – 202020394266.X

Within the validity period

2-71

Continuous Salt-Forming Raw Material Mixing Device for Nylon – 202020542025.5

Within the validity period

2-72

Dehydration and Evaporation Device for Nylon Salt Solution, 202020542024.0

Within the validity period

2-73

Evaporation Polymerization Apparatus for Nylon Salt Solution, 202020662384.4

Within the validity period

2-74

An esterification system for PBT production, 202020717863.1

Within the validity period

2-75

PBAT Production Final Polycondensation Vacuum System – 202020371724.8

Within the validity period

2-76

Intermittent Polyester Temperature-Controlled Heat Transfer System, 202020718518.X

Within the validity period

2-77

A production system for a biodegradable polyester, 202020717946.0

Within the validity period

2-78

A high-performance heating reactor, 202021222611.8

Within the validity period

2-79

Combined Shaft Seal Mechanism for Nylon Polymerization Unit, 202021734829.1

Within the validity period

2-80

A vertical oxidation tower, 202021735858.X

Within the validity period

2-81

A cartridge flipping device 202021868862.3

Within the validity period

2-82

A nylon reactor spray tower, 202021868843.0

Within the validity period

2-83

A hydrogenation reactor, Patent No. 202022922955.6

Within the validity period