About
Guandei International Patent & Trademark Office is a professional team composed of elites across the country, including top talents in the legal and hi-tech fields. More than 90% of personnel from the patent department have master's degrees from national universities. Guandei has accumulated years of practical experiences with regard to matters related to intellectual property rights, and holds up an uncompromising professional standard while offering forward-looking services with vision, aiming to establish more comprehensive planning and protection of the clients' intellectual property rights.













| Realizing the Best Interests from the Clients' Point of View |
Based on this belief, when commissioned by a client, Guandei not only completes the domestic and international patent manuals efficiently, and obtains a lower rejection number than the industry average alongside a higher approval rate than the industry average, but more importantly, Guandei is deeply aware that the real value of a patent lies in the forward-looking strategy, as well as the systematic maintenance and effective exercise of the rights. Therefore, Guandei is dedicated to maximizing the value of the client's intellectual property rights. The patent certificate we hand over to our client is certainly not a worthless piece of paper that does not stand any trial, but a comprehensive weapon for offense and defense of patent.
| A Responsible Attitude |
We conduct rigorous, careful and reasonable evaluation and investigation prior to the application of all of the cases. This includes a coverage of the R&D outcomes, the possibilities of the product, a thorough investigation on prior cases before applying, market research, and the offense and defense point of view for the competitors. Due to this attitude we have at Guandei, in approximately 30% of the cases of evaluation that the clients commission us, we honestly inform our clients that we do not recommend the application after careful consideration. Instead, we would recommend other ways of protection, or assist in revising the viable technical solutions. Therefore, Guandei saves about 30-40% of patent expenses for our clients annually while maintaining the quality of our cases.
| Insisting on Professionalism |
During the application process of each case, Guandei always maintains good two-way communication with the client in order to obtain the most comprehensive protection for the client. At the same time, we pay attention to any revision of relevant laws, so as to develop a comprehensive guide for the protection of intellectual property rights. Due to our insistence at Guandei, time is not the sole consideration when we draft the documents; instead, we examine the details in our drafts in depth based on our professional evaluation and investigation. We also take into consideration the future avoidability, possible scenarios of infringement, and effective offense and defense measures, in order to plan a complete counterattack beforehand, so as to establish a more comprehensive strategy of intellectual property rights.
| Sustainable Services |
After submitting the application of each case, Guandei will regularly follow up the case for the clients and proactively send out a prompt letter, so that the client can obtain approval in the shortest time possible. After receiving the certificate, we conduct systematic monitoring, strict time limit control, and real-time status report. For our clients to be able to stay ahead in terms of innovation and R&D in the industry, and for the clients' sustainable operation, Guandei proactively customizes an pinpointing of technical fields, and regularly sends out the relevant gazettes, so that the clients may experience our dedication of "A single application is all that's needed to enjoy sustainable services." Based on this service motto, Guandei led the industry in Taiwan in establishing the only monitor system, as well as achieving simultaneous monitoring with the main intellectual property bureaus of the world. Furthermore, in recent years, we have allocated budgets to establish seven major databases, including Europe, the United States, China, Taiwan, Japan and so on, in order to satisfy the clients' needs to obtain the newest information rapidly.
Services
DOMESTIC AND INTERNATIONAL PATENT SERVICES
- Patent Drafting
- Patent Application
- Patent Receipt
- Patent Search
- Patent Administrative Remedy
DOMESTIC AND INTERNATIONAL TRADEMARK SERVICES
- Trademark Application
- Trademark Receipt
- Trademark Search
- Trademark Dispute
- Trademark Administrative Remedy
PATENT ANALYSIS AND AUTHENTICATION
- Patent Avoidance
- Patent Invalidation
- Infringement Assessment Report
- Product Development Design
LEGAL CONSULTATION
- Litigation
- Non-litigation Cases
- Resident Legal Consultant
- Patent and Trademark Infringement Handling
GOVERNMENT SUBSIDY
- Patent Inventory
- Patent Vitalization
- Commercialization of Patent of Universities and Colleges
- Application of Governmental Subsidy for R&D Projects
PATENT VALUE-ADDED SERVICES
- Patent Appraisal
- Patent Authorization
- Provision of Patent Gazette
- Patent Mapping and Technical Analysis
- Intangible Asset/Appraisal/Trading/Report
gazette
Real-time Patent Gazette in Taiwan and the United States Subscribe
| ELECTRONICS INDUSTRY GAZETTE |
| BICYCLE GAZETTE |
| HAND TOOL GAZETTE |
certificate
| Patent Certificates in Various Countries |








| Trademark Certificates in Various Countries |









| TOTAL NUMBER OF APPLICATIONS OF PATENT AND TRADEMARK BY THE GDIPO |
applications of invention
applications of new model
applications of design
applications of trademark
| RECEIVING COUNTRIES FOR APPLICATIONS UNDERTAKEN BY THE GDIPO |
countries for invention
countries for new model
countries for design
countries for trademark
our Team

David S.W. Huang
Director / Attorney / Patent Agent
Paula Lai
Patent Attorney
Leo Chan
Patent Engineer
Hsiao-wen Chen
Patent Engineer
Che-Wen Chang
Patent Engineer
Chia-Yuan Chang
Patent Engineer
Uni Lin
Patent Engineer
Wayne Hung
Manager of the Intellectual Property Strategy Department & Consultant for governmental intellectual property project
Austin Chen
Manager of Intellectual Property
Ben Chiang
Senior Patent Agent
Allen Lin
Senior Patent Agent
SP Wang
Intellectual Property Specialist
Kenny Sun
Intellectual Property Specialist
Ryan Yang
Director of the Intellectual Property Department
Ken Tsai
Intellectual Property SpecialistContact



Office Location
Guandei International Patent & Trademark Office
Taichung Branch: 12F.-3, No. 285, Sec. 2, Taiwan Blvd., West Dist., Taichung City 403, Taiwan (R.O.C.)
FAX : 04-23295599
Branch Office
Guandei International Patent & Trademark Office / CHEN, HUANG & PARTNERS ATTORNEYS AT LAW
Taipei Branch: 8F.-1, No. 180, Sec. 2, Dunhua S. Rd., Da’an Dist., Taipei City 106, Taiwan (R.O.C.)
FAX : 02-27324772
Branch Office
Guandei International Patent & Trademark Office
Taoyuan Branch: 7F., No. 86-2, Yiwen 1st St., Taoyuan Dist., Taoyuan City 330, Taiwan (R.O.C.)
FAX : 03-4792766
Email Address