Holiday Closing

In observance of Memorial Day, the Library will be closed Sunday, May 26 and Monday, May 27.  We will reopen on Tuesday, May 28 at 9:30am.  


Our servers will undergo scheduled maintenance starting at 1:30am on Wednesday, May 22, 2024. During this time, Live-brary services, including access to your patron record, searching the catalog and logging into Live-brary services and databases, will be temporarily unavailable. We apologize for any inconvenience.

Patent & Trademark Resource Center

PTRC logo

Patent and trademark search demonstrations are by appointment only. Remote appointments are now available using Google Meet.

Please call (631) 360-2480 x128 or email to make an appointment.


This service is only available at our Smithtown Building

What is the Patent & Trademark Resource Center?

The Smithtown Library is an officially-designated Patent & Trademark Resource Center (PTRC), part of a nationwide library network maintained by the U.S. Patent & Trademark Office (USPTO). PTRCs disseminate patent and trademark information and support the public's diverse intellectual property needs. The Library's staff can assist patrons in performing their own patent searches and with finding and using other research materials (The Smithtown Library staff are not able to conduct patent searches and cannot provide legal advice). 

As a PTRC, The Smithtown Library offers:   

  • Free access to patent and trademark documents in various formats
  • Resources for historical patent research
  • Patent searching guides and other reference materials on intellectual property
  • USPTO trained staff
  • Access to plant patents in hardcopy format  
  • Private patent and trademark search demonstrations


Getting Started with Patents

Here are some useful websites, videos and tools:

Doing business with the United States Patent and Trademark Office

Customers seeking access and use of the USPTO's Patent Electronic Systems may do so as either non-registered or registered users. 

For more information call The Smithtown Library PTRC at (631) 360-2480 x128 or the USPTO's Electronic Business Center’s toll free number at (866) 217-9197.

You can also view our How to Become an eFiler video. 

Important Patent Information

The chart below illustrates the difference between these two types of customers.




File New Application



Access Public Applications



File Follow Up Papers



Electronically Save Material



Review Unpublished Submissions



Track Patent Application Online



In order for an invention to be patentable it must be new to the world, not just the U.S.P.T.O. Below are some international patent office databases where you may search for “prior art”. “Prior art” is the term used for evidence of previous knowledge of an invention.

PATENTSCOPE: The PATENTSCOPE database provides access to international Patent Cooperation Treaty (PCT) applications in full text format on the day of publication, as well as to patent documents of participating national and regional patent offices.  

Espacenet: The European Patent Office offers free access to information about inventions and technical developments from 1836 to today.

Japan Patent Office: This site also provides access to machine translations of Japanese patents.

Korean Intellectual Property Rights Information Service: KIPRIS consists of a abasic search function for entry-level users and an advanced search funtion for experienced users. 

IP Australia: IP Australia has a wealth of patent data dating back to the inception of the patent office in 1904. In 2008 we consolidated this information into one search system for Australian patent data - AusPat.

Canadian Intellectual Property Office: This database lets you access 150 years of patent descriptions and images. You can search, retrieve and study more than 2,350,000 patent documents.

WIPO (World Intellectual Property Organization) Intellectual Property Digital Library search international trademark registrations (Madrid system), international patent applications (PCT) and other databases; access guides, standards, laws, regulations, fees, statistics, FAQs, links and more.

A plant patent is granted by the United States government to an inventor who has invented or discovered and asexually reproduced a distinct and new variety of plant, other than a tuber propagated plant or a plant found in an uncultivated state. The grant lasts for 20 years from the date the application was filed. 

Due to differences in computer hardware and software such as scanners, scanning software, browsers and computer monitors, among others, digital images cannot be exactly the same as those on the paper copies. Therefore, it is strongly suggested that you visit a PTRC like the one at The Smithtown Library to research plant patents. The Smithtown Library offers official paper copies from PP10,172 - Present. 

If you wish to begin your preliminary plant patent research digitally before viewing the paper copies, the following organizations are recommended:

Featured Plant Patents

Climbing Rose

Climbing Rose

PP28,436 Climbing Rose  Plant Named 'BAIPEACESAR'  



PP28,447 Mandevilla Plant Named 'LANFLORIDA'



PP28,460 Argyranthemum Plant Named 'SUN 480'

Nectarine Tree

Nectarine Tree

PP30,145 Nectarine Tree Named 'PEARLICIOUS XX'


Getting Started with Trademarks

Trademark Basics: what you should know before filing.  

Trademark Information Network: the USPTO has created a series of newscast-style videos to help you understand trademarks. 

Overview of Trademark Law: this overview from the Berkman Center for Internet & Society at Harvard University included links to United States Codes as well as case studies.


Domain names are the “addresses” to websites. The first to pay for the available domain name will receive it. Before you purchase a domain name you should check if the name conflicts with a registered trademark. You may be prevented from using a domain name if the name is similar to and registered as a trademark to a company selling similar goods and services.

InterNic: Offers public information regarding Internet domain name registration services. Includes a list of approved registrars.

ICANN: This organization oversees the process of approving domain name registrars. Includes a list of approved registrars.

WHOIS: If a domain is taken, you may wish to locate the owner and discuss acquiring the name. For information about who owns a domain name visit: or

The .com portion of your domain name is called a top-level-domain TLD. You are not limited to using .com for your business' TLD. To view hundreds of available TLDs visit IANA: Internet Assigned Numbers Authority.