Deep & Far Attorneys-at-Law

Deep & Far Attorneys-at-Law

13th Floor, 27
Sec. 3, Chung San N. Road,

Yu-Li. Tsai



Bachelor Degree, Electrical Engineering, National Taiwan University, Taiwan.
Master Degree, Graduate Institute Communication Engineering, National Taiwan University, Taiwan.
Master Degree, Master of Intellectual Property, Law School of University of New Hampshire, U.S.A.

Mr. Tsai has become a partner patent attorney of Deep & Far in since October 2011. In Deep & Far, he constantly represents a diverse group of clients in intellectual property litigation matters, corresponds with clients, develops trial strategies based on clients’ needs, drafts favourable indictments and briefs for the clients, conducts and prepares patent infringement analyses, drafts patent specifications and prosecutes patent applications.

As a qualified and well-experienced patent attorney in Taiwan, he is capable of practicing before patent office and judicial court, successfully representing litigations in a variety of IP cases, achieving favourable consideration or decisions for complex, often difficult to win cases.

• Information about Deep & Far
Deep & Far attorneys-at-law was founded in 1992 and is dealing with all phases of laws with a focus on the practice in separate or in combination of all aspects of intellectual property rights (IPRs) including patents, trademarks, copyrights, trade secrets, unfair competition, and/or licensing, counselling, litigation and/or transaction thereof.

The patent attorneys and patent engineers in Deep & Far normally hold outstanding and advanced degrees and are generally graduated from the top five universities in this country. Our prominent staffs are dedicated to provide the best quality service in IPRs in this country. As a proof, about one half of top 100 incorporations in this country have experiences of seeking patented their techniques, but more than one fifth of the top 100 incorporations has ever used services of this firm. Furthermore, Hi-Tech companies in the science-based industrial park located at Hsin Chu had ever played the most important role in booming the economy of this country. About one half of them has experiences in seeking patented their techniques, and out of more than 50% of the patent-experienced companies in that park have ever entrusted their IPR works to this firm. Certainly, we must also represent international giants, e.g. InterDigital, MPS, Schott Glas, Toyo Ink, Motorola, Cypress, Armani…

It is our philosophy to provide competent legal services that other firm cannot comparably provide. The necessitated ensuing problem is how we can so provide? Deep & Far so achieve by selecting, edifying and nurturing peoples who have the following personalities: learned in expertise, morally earnest and sincerely behaved in mind and strictly disciplined between give and take. It is well-believed that such properties are key factors for peoples to properly and competently behave themselves.

By the perseverance that we only do what and only perform works which enable this firm to be deep and far, Deep & Far can then equate the reality with its name.

More information regarding this firm could be found from the website above-identified.

Our publications:
(1)Tsai, Yu-Li (2015). Lexology Navigator Patents Q&A for Taiwan.!selection/sections

(2)Tsai, Yu-Li (2014). Update On The Recent Developments From The TIPO Regarding Examination Practice For Computer Software Related Invention. Corporate Live Wire Expert Guide: Intellectual Property 2014, 66-69.

(3)Tsai, Yu-Li & Tsai, Lu-Fa (2014). A practical cross-border insight into copyright law, Chapter 20 Taiwan. The International Comparative Legal Guide to: Copyright 2015 Edition, 1, 111-116.

(4)Tsai, Lu-Fa (2014). Changes in the Law and Their Effect. Corporate Live Wire Expert Guide: Company Formation 2014, 66-71.

(5)Tsai, Yu-Li (2014). Patent Features in Taiwan. Lawyer Monthly Magazine Global Expert Guide to IP 2014, 138-141.

(6)Tsai, Yu-Li (2013). Q & A Country Chapters: Taiwan. Intellectual Property Law Guide 2013/2014 from LexisNexis, 1, 123-151.

(7)Tsai, Yu-Li (2013). Were Rights on Around 20,000 Utility Model Patents Unduly Forfeited in Taiwan? Corporate Live Wire Expert Guide: Intellectual Property 2013, 42-47.

(8)Tsai, Lu-Fa (2014). Trademark use-Taiwan. SMD International Country Index 2014.

(9)International Patent Symposium, 2006, coorganized by National Taipei University and Deep & Far Attorneys-at-law

(10)International Patent Symposium, 1996, organized by Deep & Far Attorneys-at-law

(11)Articles collected under

• Our IP service territories:
We prosecute worldwide patent matters for local clients. For international or foreign clients, we prosecute patent matters mainly in Taiwan, significantly in China & Hong Kong, and with minor representation in Macau, Singapore, Korea & Japan.

• Some successful cases?
By the 90年度判字第751 號decision rendered by Supreme Administrative Court (SAC), it is made clear that an invalidating party still potentially has legal interests on an expired patent.

By the 98年度行專訴字第45號 decision rendered by the IP Court (IPC), it is made clear that the applicant can move the features disclosed in the descriptions to be included in the claim when the application is invalidated based on newly located prior art, which practices have been incorporated into the Examination Guidelines.

Other decisions we won before the IPC and SAC include 100年度行專更(一)字第7號、100年度行專訴字第16號、99年度行專訴字第172號、99年度行專訴字第84號、98年度行專訴字第131號、98年度行專訴字第81號、98年度行專訴字第78號、(98年度行專訴字第45號、)最高行政法院97判字第799 號判決(、最高行政法院90年度判字第751 號判決).