No. Patent Name Owner Category Patent Code Authorization Date
1 Anti vibration groove Zhejiang Zhengkang Design Patent 2.02E+012 12/21/16
2 Anti vibration groove connector for pipeline Zhejiang Zhengkang Utility Models Patent 2.02E+012 01/18/17
3 High strength tensile mechanical compression type pipe joint Zhejiang Zhengkang Utility Models Patent 2.02E+012 09/21/16
4 Tensile elastic ring Zhejiang Zhengkang Utility Models Patent 2.02E+012 09/21/16
5 Special joint for gas Zhejiang Zhengkang Utility Models Patent 2.02E+012 09/21/16
6 Self sealing ring Zhejiang Zhengkang Utility Models Patent 2.02E+012 11/23/16
7 Warm jacket (45 degree elbow) Zhejiang Zhengkang Design Patent 2.02E+012 07/20/16
8 Articulated bellows Zhejiang Zhengkang Utility Models Patent 2.02E+012 07/27/16
9 Stainless steel pipe warm jacket Zhejiang Zhengkang Utility Models Patent 2.02E+012 07/27/16
10 A new type of metal pipe fitting Zhejiang Zhengkang Utility Models Patent 2.02E+012 07/27/16
11 Three way warm jacket Zhejiang Zhengkang Design Patent 2.02E+012 07/27/16
12 Warm jacket (90 degree elbow) Zhejiang Zhengkang Design Patent 2.02E+012 07/27/16
13 Direct thermal cover Zhejiang Zhengkang Design Patent 2.02E+012 09/07/16
14 Thin wall compression type metal pipe fitting type O sealing ring Zhejiang Zhengkang Utility Models Patent 2.02E+012 08/05/15
15 Internal expansion type stainless steel pipe mouth shaping device Zhejiang Zhengkang Utility Models Patent 2.02E+012 08/05/15
16 Full automatic stainless steel pipe high pressure water pressure testing machine Zhejiang Zhengkang Utility Models Patent 2.02E+012 08/05/15
17 An elbow pipe automatic flat head machine Zhejiang Zhengkang Utility Models Patent 2.02E+012 08/05/15
18 Full automatic steel pipe air tightness detecting machine Zhejiang Zhengkang Invention Patent 2.01E+012 03/02/16
19 Full automatic steel pipe air tightness detection device Zhejiang Zhengkang Utility Models Patent 2.01E+012 06/25/14
20 Loading device of full automatic steel pipe air tightness testing machine Zhejiang Zhengkang Utility Models Patent 2.01E+012 07/16/14
21 Material distributing device of full automatic steel pipe air tightness detecting machine Zhejiang Zhengkang Utility Models Patent 2.01E+012 07/16/14
22 Multi-station semiautomatic fitting former Zhejiang Zhengkang Invention Patent 201310251507X 08/26/15
23  Double-cone double-clamp metal pipeline connecting piece Zhejiang Zhengkang Utility Models Patent 2.01E+012 12/18/13
24  Semi-automatic multi-station pipe fitting forming machine Zhejiang Zhengkang Utility Models Patent 2.01E+012 12/18/13
25 Pressing Former of Metal Pipe Fitting  Zhejiang Zhengkang Invention Patent 2.01E+011 05/06/09
26  Convex-ring-free self-locking and hermetic-connecting device for thin-walled stainless steel pipe Zhejiang Zhengkang Utility Models Patent 2.01E+012 01/11/12
27  LGSSP connecting piece without bulge loop and adopting self-locking sealing Zhejiang Zhengkang Utility Models Patent 2.01E+012 02/15/12
28 Inner lining clamping press composite tube connecting pieces Zhejiang Zhengkang Utility Models Patent 2.01E+012 07/23/08


Pending

We have pending patents under application, as listed below:

No. Patent Name Owner Category Patent Code Authorization Date
1 Nodal pattern bellows closes Zhejiang Zhengkang Invention Patent 201610118690.X 03/02/16
2 High-strength tensile mechanical pressure connection type pipe joint Zhejiang Zhengkang Invention Patent 2.02E+011 05/10/16
3 Automatic faced machine of elbow pipe Zhejiang Zhengkang Invention Patent 2.02E+012 04/08/15