New to Patent Searching? See this important information about searching for patents:
對專利搜尋不熟悉？ 請查看有關專利搜尋的重要資訊：

How to Conduct a Preliminary U.S. Patent Search: A Step by Step Strategy - Web Based Tutorial (38 minutes)
如何進行初步的美國專利搜索：逐步策略 - 網絡教程 (38 分鐘)

• The Multi-Step strategy - A handout that outlines a suggested procedure for patent searching
  多步驟策略 - 一份概述專利搜尋建議程序的講義

Patents may be searched using the following resources:
可以使用以下資源搜尋專利：

Patent Public Search 專利公開搜尋

The Patent Public Search tool is a new web-based patent search application that replaced internal legacy search tools PubEast and PubWest and external legacy search tools PatFT and AppFT. Patent Public Search has two user selectable modern interfaces that provide enhanced access to prior art. The new, powerful, and flexible capabilities of the application improves the overall patent searching process.
專利公共搜索工具是一個新的基於網絡的專利搜索應用程序，取代了內部的舊版搜索工具 PubEast 和 PubWest 以及外部的舊版搜索工具 PatFT 和 AppFT。專利公共搜索具有兩個用戶可選的現代界面，提供增強的先前技術訪問。該應用程序的新功能強大且靈活，改善了整體專利搜索過程。

Global Dossier 全球檔案

Global Dossier is a set of business services aimed at modernizing the global patent system and delivering benefits to all stakeholders through a single portal/user interface.  Through this secure service, users have access to the file histories of related applications from participating IP Offices, which currently include the IP5 Offices.
全球檔案是一套旨在現代化全球專利系統的商業服務，並通過單一入口/用戶界面為所有利益相關者提供好處。通過這項安全服務，用戶可以訪問參與的知識產權辦公室的相關申請的檔案歷史，目前包括 IP5 辦公室。

By using this service, users can see the patent family for a specific application, containing all related applications filed at participating IP Offices, along with the dossier, classification, and citation data for these applications. This service also provides Office Action Indicators to help users identify applications that contain office actions, a Collections View for saving documents and applications for review later on in the session, and the ability to download the documents in an application.
透過使用此服務，使用者可以查看特定申請的專利家族，該家族包含所有在參與的知識產權辦公室提交的相關申請，以及這些申請的檔案、分類和引用數據。此服務還提供辦公室行動指標，幫助使用者識別包含辦公室行動的申請，提供一個收藏視圖以便在會話中稍後保存文件和申請進行審查，並能夠下載申請中的文件。

Public Search Facility 公共搜索設施

The United States Patent and Trademark Office (USPTO) Public Search Facility located in Alexandria, VA provides the public access to patent and trademark information in a variety of formats including on-line, microfilm, and print. Trained staff are available to assist public users.
美國專利商標局 (USPTO) 公共搜尋設施 位於維吉尼亞州亞歷山大市，提供公眾以多種格式訪問專利和商標資訊，包括線上、微縮膠卷和印刷。經過培訓的工作人員可協助公眾使用者。

Patent and Trademark Resource Centers (PTRCs)
專利和商標資源中心 (PTRCs)

Your nearest Patent and Trademark Resource Center (PTRC) maintains local search resources and may offer training in patent search techniques.
您最近的 專利和商標資源中心 (PTRC) 維護當地搜索資源，並可能提供專利搜索技術的培訓。

• Find your nearest PTRC 找到您最近的 PTRC

Patent Official Gazette 專利公報

The Electronic Official Gazette allows users to browse through the issued patents for the current week. The Official Gazette can be browsed by classification or type of patent, for example, utility, design, and plant.
電子公報 允許用戶瀏覽當週發佈的專利。用戶可以按分類或專利類型瀏覽公報，例如，實用型、設計型和植物型。

Common Citation Document (CCD)
常見引用文件 (CCD)

The Common Citation Document (CCD) application aims to provide single point access to up-to-date citation data relating to the patent applications of the IP5 Offices. It consolidates the prior art cited by all participating offices for the family members of a patent application, thus enabling the search results for the same invention produced by several offices to be visualized on a single page. The creation of the CCD application is part of an ongoing process of technical harmonization at international level aimed at establishing an appropriate infrastructure to facilitate greater integration of the global patent system.
常見引用文件 (CCD) 應用程序旨在提供單一入口，以獲取有關 IP5 辦公室專利申請的最新引用數據。它整合了所有參與辦公室為專利申請的家庭成員所引用的先前技術，從而使多個辦公室對同一發明的搜索結果能夠在單一頁面上可視化。CCD 應用程序的創建是國際層面上技術協調持續過程的一部分，旨在建立適當的基礎設施，以促進全球專利系統的更大整合。

Search International Patent Offices

To see if your idea has been patented abroad, you'll want to refer to searchable databases made available from other International Intellectual Property offices.

Free online access to patent collections is provided by many countries. Some available databases include:

• European Patent Office (EPO) provides esp@cenet a network of Europe's patent databases- This site also provides access to machine translation of European patents for some languages. 
• Japan Patent Office (JPO) - This site also provides access to machine translations of Japanese patents.
• World Intellectual Property Organization (WIPO) provides PATENTSCOPE ® Search Service, which features a full-text search of published international patent applications and machine translations for some documents as well as a list of international patent databases.
• Korean Intellectual Property Rights Information Service (KIPRIS)
• China National Intellectual Property Administration (CNIPA) - This site also provides access to machine translation of Chinese patents.
• Other International Intellectual Property Offices that provide searchable patent databases include: Australia, Canada, Denmark, Finland, France, Germany, Great Britain, India, Israel, Netherlands, Norway, Sweden, Switzerland and Taiwan.

Stopfakes.Gov provides informative Toolkits that give an overview of the Intellectual Property Rights (IPR) environment in various countries around the world.

For additional search resources, contact your local Patent and Trademark Resource Center, visit the USPTO Public Search Facility or the USPTO Main STIC Library. The staff in the Main STIC Library are experts on foreign patents and able to help the public as needed.

Search Published Sequences

The Publication Site for Issued and Published Sequences (PSIPS) website provides Sequence Listings, tables, and other mega items for granted US patents or published US patent applications.

All sequences (SEQ ID NOs.) and tables for listed patents or publications are available for viewing, without downloading, by accessing the proper document detail page and then submitting a SEQ ID NO or a mega table ID number.

Patent Assignment Search

Visit the Patent Assignment Search website to search for patent assignments and changes in ownership.

Patent Examination Data System (PEDS)

The Patent Examination Data System (PEDS) in the Amazon Cloud provides public users the ability to search, view and download bibliographic data for all publicly available Patent applications in a secure manner. The solution allows public users to search and download bibliographic data in bulk as well as manage the volume of data that can be downloaded at any given period of time by a particular user.