Keisen Associates is specially situated to help you reach the markets in Japan and elsewhere in Asia (and in the United States of America!) with patents for your inventions. We are multicultural, multilingual, and eager to be of service. We represent international clients before the Japan Patent Office (JPO) and Japanese courts through our Philadelphia office as well as our Tokyo office. Our Japanese practice group in the Philadelphia office is the largest one outside Japan, equipped to process and file your inventions promptly. Our Philadelphia and Tokyo offices cooperate to provide timely results even when the cases are urgent. We can serve you from pre-filing investigations and searches to PCT national phases and Paris Convention applications, on to registration of patent rights and litigation before Japanese courts.

Even if you fear that your case’s filing deadline is past, or if it has been rejected by the JPO, or there is some other concern you have for your invention, we may be able to work with you to seek reinstatement or appeal for reconsideration. Please contact us before abandoning the case.
Our attorneys, agents, and other specialists are knowledgeable in both Japanese patent law as well as a broad range of disciplines, such as the mechanical, electrical, computer, chemical, and biological fields. Our technical team can prepare clear, precise, and standardized Japanese documents; review prepared Japanese documents; translate English and Japanese documents; support arbitration; give expert witness in Japanese law; and make expert witness referrals.

We are also situated to help you reach into a number of major Asian markets with our IP Gateway to Asia platform, using our expertise and local networks to help you get patents in China, South Korea, Indonesia, and India.

Do you have questions on filing utility models? We can help! Contact us at 215-701-6349 or contact us from the form below.

Contact us

We're not around right now. But you can contact us at 215-701-6349 or 81-3-5298-6552.

Questions? We're here. Send us a message!

Click ENTER to chat