Patent Calculator

A free website provided by Neustel Law Offices, to help patent attorneys, businesses and inventors determine the expiration date and maintenance fee dates for United States utility patents.

[Post to Twitter] Tweet  [Post to Delicious] Delicious  [Post to Digg] Digg  [Post to Facebook] Facebook 

Generating Keywords

Journals & Books

Search Engines

Patent Database

Free Patent Database:

  1. Patent Lens – Free Full-text Worldwide Patent Searching – serving 8,205,901 patent documents with option of BLAST – Protein and DNA Sequence Search within patents
  2. Spark-IP – IP based technology clustering online tool
  3. DECOPA – IPCentury innovative software tool based on AI-systems for use in research and development and in patenting (Intellectual Property Management) – Guest access available
  4. Patent Tool – The tools on this site are here to save you time when performing analysis of patents – Worth giving a try
  5. Delphion – Delphion is providing FREE 1-day Unlimited subscription package – Click here to register
  6. Gethepatent.com – Free search & result view possible
  7. Wikipatent -  Download free patents

Vendor Patent Database:

  1. Delphion
  2. Micropat
  3. SIP
  4. Patbase

[Post to Twitter] Tweet  [Post to Delicious] Delicious  [Post to Digg] Digg  [Post to Facebook] Facebook 

Translation Software

Full Text Patent Download

1. Brain Dex - Search for & download any worldwide patent
2. Patent Fetcher – Complete U.S. Patent and published Patent Application PDF files
3. Pat 2 Pdf – Download U.S. patents (in PDF) and more
4. FreePatentsonline – Download only US patent and publication
5. Clearly Understood – Currently US patents and patent applications are available

[Post to Twitter] Tweet  [Post to Delicious] Delicious  [Post to Digg] Digg  [Post to Facebook] Facebook 

Tweet links powered by Tweet This v1.4.1, a WordPress plugin for Twitter.