Dequan IP

CoreTeam

John Wang

Pantent Attorney,Partner, Manager of International Dept.

Master of Product and System Design,Norwegian University of Science and Technology (NTNU) in Norway

Practice Area

Computer system, communication system, mechanics, electronics, optical system, ect.

Specialization

Patent drafting, obtaining, evaluation, and related client counseling
Conducting patent searches and analyses, including patentability, infringement, clearance, landscape, collection, and validity
Managing domestic and foreign patent portfolios
Represented clients such asSunwoda,Peijia, Tsinghua University, CAS, etc.

Chenming Zheng

Pantent Attorney, Partner, Manager of Domestic Dept.

Master of Mechanical Engineering, Guangdong University of Technology (GUDT)

Practice Area

Mechanics, electronics, printer device, air-conditioning system, vehicle, furniture, etc.

Specialization

Post-grant proceedings and patent invalidation
Familiar with litigation practices and excels at providing efficient enforcement strategies
Conducting infringement and validity analyses, freedom-to-operate studies, and drafting intellectual property licensing agreements
Represented clients such asJE Furniture,Huiwei Group,Sanlang, etc.

Kaihong Yin

Attorney-at-law,Pantent Attorney, Partner, Manager of Litigation Dept.

Bachelor of Aerospace Manufacturing Engineering, Northwestern Polytechnical University (NWPU)

Practice Area

Aerospace, mechanical, automation, software algorithms, etc.

Specialization

In charge of the firm’s patent litigationcases
Familiar with litigation practices and excels at providing efficient enforcement strategies
Conducting infringement and validity analyses, freedom-to-operate studies, and drafting intellectual property licensing agreements
Represented clients such asPRM Tech., Beijing SAWES, etc.

Mingxin Wu

Pantent Attorney, Partner, Manager of Process Dept.

Bachelor of Electrical Engineering and Automation, South China Agricultural University (SCAU)

Practice Area

Computers, machinery, electronics, automation, etc.

Specialization

Patent drafting, obtaining, evaluation, and related client counseling
Managing domestic and foreign patent portfolios
Established a quality control system for patent drafting
Represented clients such as Zhuhai Ribon Tech., Zhuhai Drien Tech., etc.

Simon Chiu

Pantent Attorney, Senior Consultant, Technical Expert

Master degree of Control Science and Engineering, Harbin Institute of Technology (HIT)

Practice Area

Software, business method, AI technology, telecommunications, mechatronics,etc.

Specialization

Patent procurement, evaluation, and related client counseling
Digitizationtechnology researchand development for IP management and practice
In charge of the firm’s patent translation quality, with particular emphasis on training programs
Represented clients such as KEJIE Group, HIT University, etc.

Jiaping Lee

Pantent Agent,Trademark Attorney, Manager of Trademark Dept.

Bachelor of Automation Engineering,Wuyi University

Practice Area

Automation, machinery, electronics, etc.

Specialization

Patent drafting, obtaining, evaluation, and related client counseling
Trademark application, opposition, invalidation, cancellation, and review
Managing domestic and foreign trademark portfolios
Represented clients such as KEJIE Group, Sun Yat-Sen University, etc.

Case 1 Utility-Model Infringement Dispute

Patent No. & Title

CN202121344219.5 - Toner Cartridge without Waste Toner

Case Focus

Enforcement strategy

Situation & Outcome

The patentee launched an administrative enforcement action against our client, alleging infringement. We conducted an exhaustive prior-art search and uncovered multiple substantial defects under the Patent Law and its Implementing Rules. A corresponding invalidation request was filed and, after hearing, the Panel accepted our arguments and evidence in full, declaring the entire patent invalid. The patentee subsequently withdrew the enforcement action. The win eliminated our client’s infringement risk and secured a decisive victory.

Case 2 Smart Flowerpot Patent Navigation

Case Focus

Patent landscape,FTO

Situation & Outcome

The client’s next-gen smart flowerpot pairs a striking industrial design with a suite of user-driven features. After locking down the technical specs, we ran a global patent sweep, mapping prior art and flagging high-risk blocking patents. The report let R&D steer clear of contested space, trimming development spend and timeline. Once the design froze, we mined the core innovations and filed a layered patent package—giving out client both a clear direction to market and iron-clad protection for its new technology.

Case 3 U.S. Patent, Grant without Office Action

Patent No. & Title

US 10,692,480 –System and Method of Reading Environment Sound Enhancement Based on Image Processing and Semantic Analysis

Case Focus

Direct writing of U.S. patent, Accelerated examinationprocess

Case Overview

Working from inventor interviews on a software-algorithm concept, we drafted the U.S. application directly in English and leveraged the Patent Prosecution Highway program. The application sailed through examination—no rejections, no RCE. The client pocketed sizable savings in both U.S. fees and prosecution time while securing robust patent protection at record speed.

Case 4 Patent Invalidation (Petitioner Side)

Patent No. & Title

CN202021890710.3 – A Novel LED Track Rail for Lighting Fixtures

Case Focus

Litigated patent, High-stakes invalidation

Situation & Outcome

The patentee had invoked this utility model against our client in concurrent infringement litigation. To neutralize the threat, the client instructed DEQUAN to file an invalidation action. Our team conducted an intensive validity review and mounted a two-wave attack—initial petition plus supplemental briefs—citing multiple grounds of invalidity. The panel accepted our creative-step arguments and prior-art evidence in full, invalidating every claim. The complete knock-out removed the patent barrier and laid the groundwork for our client’s forthcoming victory in the infringement suit.

Case 5 Design Patent Enforcement (Plaintiff Side)

Patent No. & Title

CN201030258287.0 – Negotiation Table (F102)

Case Focus

Litigated design, Tactical enforcement

Situation & Outcome

Because the infringing product was not sold on the open market, we had to infiltrate the defendant’s factory for notarized evidence. The patented table includes both a desktop and legs, whereas the accused product lacked the tabletop. By foregrounding the identical leg shape, we convinced the court that the overall ornamental impression was still captured. Finally the first-instance victory secured, with infringement found despite the missing surface.

Basic Applications

IP - Related Services

Litigation & Consulting

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