Search Patents Smarter and Faster

Petapator is designed for USPTO users to enable smarter and faster online patent searches. With user friendly Visualization Tools and built-in Analytics Tools, Petapator increases your patent search efficiency and allow you to easily perform insightful analysis.

Link to patents:

About Petapator

Petapator is a fork of Aspator, the well-known Firefox patent search tool, from the same developer. For further information of Aspator, please visit

Petapator helps you search and read patents and patent applications from USPTO ( quicker and more efficient. Bring all patent information to one page and save patent search results.

Petapator is designed for engineers, scientists, patent agents, patent attorneys, and patent executives who need to search patents regularly. There is no more need to open one tab for one patent or click the mouse multiple times before reaching the patent information you need.

Link to Petapator:

A brief guide on using Petapator can be viewed at

Features of Petapator:

1. Read searched patent abstracts, claims, drawings and bibliographies from USPTO.
2. View USPTO patent drawings directly. No need to install TIFF viewer.
3. Patent classification analyzer.

Version 10.2.1
-Faster images upload for all recent published applications

Version 10.2.0
-Faster images upload for all granted patent and earlier published applications

Version 10.1.0
-Faster images upload for design patent after D700,000

Version 10.1.0
-Faster images upload for patent after 10,000,000

Version 10.0.5
-Bug fix for patent landscape

Version 10.0.4
-Bug fix for longer patent number
-Introduce PatentBell and PatentDownload in the popup icon

Version 10.0.3
-Update patent landscape as a new server is being used

Version 10.0.2
-Patft1 server is down. Change to patft

Version 10.0.1
-Introducing Patent Landscape Beta
-Fixed Refine Search bug

Version 9.1.1
-Performance improvement

Version 9.0.4
-Performance improvement

Version 9.0.2
– New feature: download a PDF that contains the first page of publication of the selected patents / applications. This allows faster review of interested patents / applications.

Version 8.5.1
– bug fix for refined search in patent application

Version 8.5.1
– bug fix

Version 8.5
– Added Global Dossier for easier Public Pair viewing
– Added Gallery of Figures – a new way to view patent figures
– bug fix

Version 8.4.1
– bug fix

Version 8.4
– added a new feature, Gallery, to bring a new experience to see patent figures

Version 8.3
– added a button to toggle “elements in figures”
– added a button to monitor a query easier
– added claim format
– remove reference to PatentBell at the search page

Version 8.2
– added “elements in figures”
– added citing patents and cited by. The data is retrieved from Google Patents

Version 8.0.1
– improved user interface with classic feel
– now work with PatentScope of WIPO

Version 7.4.2
– on EPO’s request, Petapator cannot work at Espacenet for now.

Version 7.4.1
– update PDF file downloading process

Version 7.3.0
– can now view large images automatically

Version 7.2.0:
– enhance classification for the analyzer
– add CSV file for information of the first 1000 patents
– bug fix for email

Version 7.1.4:
– bug fix for the analyzer

Version 7.1.3:
– New feature: citation analysis

Version 7.1.2:
– Fixed the email bug
– Enhanced the patent reading functions

Version 7.1.1:
– Change the number of patents/applications shown in the first page from 200 to 50 for stability issue
– Add quick patent search capability from PatentBell

Version 7.1.0:
– Many enhancements to make Petapator be compatible with updated USPTO webpages
– Improve performance

Version 7.0.2:
– bug fix for email and CSV export

Version 7.0.1:
– New features: (1) Find words/phrases in the search results (2) Patent information appears faster
– bug fix

Version 6.4.3:
– bug fix

Version 6.4.2:
– bug fix

Version 6.4.1:
– use Google Patent images in case USPTO image server is not working

Version 6.4:
– show the first 200 hits on the first page
– show patent specifications/descriptions
– improve analyzer bar charts
– improve analyzer user interface

Version 6.3.1:
– use a different word cloud engine to improve performance
– store display options

Version 6.3:
– bug fixed for printing
– improved performance
– consolidating data from Google Patents

– bugs fixed

Version 6.2.0:
– bugs fixed
– improved user-interface

Version 6.1.2:
– removed abstract for Google Patent Search
– improve performance

Version 6.1.1:
– added abstract for Google Patent Search
– improve performance

Version 6.1:

– added word cloud
– bug fixes

Version 6.0:
– major update of user-interface
– new analyzer engine
– more secured

Version 5.6.1:
– improved the UI of reading a single patent/application.

Version 5.6:

– a new user interface for reading a single patent/application with multiple highlighters and night-reading mode.


The URL of USPTO patent application image server has changed. Updated the code to reflect the changes.

Version 5.5.8:

Updated for USPTO new image server

Version 5.5.7:

Bug fix – fixed an installation bug under Chrome v24.

Version 5.5.4:

Bug fix – fixed broken code for Chrome running in Mac.

Version 5.5.3:

Bug fix – was unable to extract information from some patents.

Version 5.5.2:

Bug fix – fixed the duplicate assignment and patent family information.

Version 5.5.1:

Enhanced webpage download speed.

Version 5.5:

New Features –
a. Direct access to patent family information retrieved from Espacenet.
b. Direct access to USPTO Patent Assignment webpage.
c. Show citation of a patent.
d. Patent search query monitoring.
e. Patent and patent application status monitoring.
f. Enhanced user interface.

Version 5.0.5:

Bug fixes – naming convention

Version 5.0.4:

New Features –

a. Key Claim Words – identify most used words in claims for quick understanding of a patent
b. Hide / Show – hide the last column for easy printing

Version 5.0.3:

New Features –

a. Major rewrite for Chrome v.23
b. bigger diagrams
c. formatting of 1st claim

Bug fixes – many

Version 5.0.1:

New Features: quick review of patent for any webpage by clicking the Petapator button on the toolbar. Abstract, the first claim, inventors, assignee, and diagrams will be shown.

Version 4.3.3:

Bug Fixes: USPTO has changed its webpage slightly, update Petapator accordingly to resolve discrepancies.

Version 4.3.1:

New Features –

a. A button to link to a support forum

Bug Fixes –

a. Fix a bug at the diagram webpage that has prevented the conversion of tiff file.

Version 4.3:

New Features –

a. Better viewing for figures.

Version 4.2:

Bug fixes –
a. fixed bugs for patent applications
b. Google Patents is back. A new window will open instead as seems Google does not like being displayed in iframe.

Version 4.1:

Bug fixes – fixed bugs in ‘Info’ for patent applications

Version 4.0:

New feature – You can now view patent family information under “Info”.

Bug fixes – fixed search records

Version 3.22:

New feature – You can now view the diagrams along the patent text at the patent page.

Bug fixes – a few, including the ability to save search records

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