Patent Invalidation and Infringement

TANLULAI’s team is skilled and experienced in patent invalidation IP right litigation. Our clients include large transnational corporations, well-known domestic enterprises and industry leaders. Our attorneys possess both the professional technical knowledge and relevant legal knowledge, and a good combination of litigation experience and technical knowledge helps us to bring to our clients more chances to achieve their target. Partners of TANLULAI have examined and handled plenty of patent invalidation, administrative litigation and patent infringement cases, many of which are major cases catching broad attention in IP industry. TANLULAI is committed to provide professional and superior services for each client, and is trusted and recognized by our clients and the IP field.

Specific patent invalidation and infringement services:

• Request for/respond to Patent Invalidation

• Administrative Litigation after Patent Invalidation

• Investigation and Analysis of Patent Infringement

• Administrative Settlement of Patent Infringement

• Litigation for Patent Infringement Disputes

• Patent Customs Recordation and Requests for Customs Protection

Our representative cases in recent years:

 • Invalidation request against the patent of Crystalline Monohydrate, Jiangsu CHIA TAI TIANQING Pharmaceutical Co., Ltd. VS Boehringer Ingelheim (BI)

 • Invalidation request against the patent of I-Type Crystalline Atorvastatin Monohydrate, Beijing Jialin Pharmaceutical Co., Ltd.,etc. VS Warner Lambert Company LLC (The succeeding retrial case was selected to be one of the Top 10 IP litigation cases of Chinese Courts in 2015)

 • Representative of Milliken Res Corp in the successful safeguarding of its core patent named “Powdered clear agent and method for mixing the agent into semi-transparent polyolefin resin” (one of the Top 10 case of the Reexamination Board in 2015)

 • Representative in the retrial case about the administrative dispute on patent invalidation，Nihon Superior Company VS the Patent Reexamination Board (one of the Top 50 Typical IP cases of Chinese Courts in 2014)

 • Representative in the patent invalidation and the succeeding administrative litigation against water preparation patent，PKU Healthcare Company VS Bayer’s Moxifloxacin,

 • Representative in the patent invalidation against the Fulvestrant preparation patent, Jiangsu HANSOH Company VS Astrazeneca AB

 • Representative in the patent invalidation against the propofol preparation patent, Jiangsu Heng Rui Co., Ltd. VS Astrazeneca

 •  Representative in the patent invalidation and the succeeding administrative litigation against the patent for pharmaceutical compositions, Jiangsu Heng Rui Co., Ltd. VS Novartis AG

 • Representative in the patent invalidation against relevant patent for Ivabradine, Jiangsu Heng Rui Co., Ltd. VS SERVIER LAB

 •  Representative in the patent invalidation and the succeeding administrative litigation against relevant patent for Tapentadol, of Jiangsu Heng Rui Co., Ltd. VS GRUENENTHAL GMBH

 • Representative in the patent invalidation and the succeeding administrative litigation against the patent for glycopyrronium salt compositions, Jiangsu Heng Rui Co., Ltd. VS Novartis AG • Responding to request for invalidation specific to relevant patent for Icotinib for Betta Pharmaceutical Co., Ltd.

 •  Representative in the patent invalidation and the succeeding administrative litigation against the crystal patent, Quzhou Yingte Polymer Material Company VS UENO SEIYAKU OYO KENKYUJO KK

 • Responding to patent invalidations against three patents specific to reversible thermo-chromic water ink compositions for PILOT INK Co., Ltd

 • Representative of VMI EPE Holland successfully invalidated their competitor’s invention patent titled “Tire building drum provided with turn up device”

 • Representative of a US client successfully invalidated the invention patent of Dyson Technology Co., Ltd. titled “Vacuum Cleaner”

 • Representative of a US client successfully invalidated the invention patent of Chongqing GPOWER GEARBOX CO., LTD titled “A supporting device for wind-power planet gear”

 • Representative of Apple Ink in the invalidation cases brought up specific to the IPhone 3 design patent, and successfully safeguarded the design patent in the Patent Reexamination Board and in the court of first instance

 • Representative of Formost Company successfully invalidated two “Garden Chair” design patents which have been applied via rush registration by its original equipment manufacturer • Representative of Nokia successfully invalidated their competitor’s design patent about “Memory” in the Patent Reexamination Board and the succeeding two trial instance