Patent File Histories
Keyword searchable and bookmarked.
Non-Patent Literature
Nicely tabbed NPL.
USPTO Assignment Documents
Assignments, Reel and Frame copies.
USPTO Certification of Documents
Rapid certification, directly with the PTO.
Delivery Options
Convenient options, plus a portal for frequent users
Legalization & Authentication
We legalize and authenticate a wide variety of documents.
IP Search Services
Professional IP and patent searching.
Patent File Histories
Excellent and Timely Patent File History Services
DPS provides patent file histories at very competitive rate and the fastest service available. Our Patent File Histories contain all the correspondence between the PTO and the patent attorney or agent representing an inventor. All of our documents are available in electronic PDF format all documents are indexed by section and fully keyword searchable.
Our staff has been working with and accessing patent and trademark files for years and are experts in submitting the proper papers if needed to access files or documents. We check the accuracy of every document also check files for updated papers and will notify you of papers or pages missing from the file.
Your electronic PDF downloads are:
- Adobe PDF documents
- Very nicely bookmarked
- Fully keyword searchable
- Share, download or e-mail them.
- Share or forward the download link to anyone
- Large order discounts are always available
Non-U.S File Histories
For non-US file histories (Japanese, Chinese, Korean, European, Canadian, World, PCT or any other country), simply tell us the patent number and any other necessary information, and we will do the rest for you. (See “Foreign Patent File Histories” in the fees and services page for pricing and delivery times.)
Machine translations are also available for most Non-U.S. files with OCR-completed text files to English for your convenience.
Search Collection
File History Search
US Format: 5,800,992 90/007961 RE37564
Foreign Format: JP2006/521819 CA2210720 CN1212425
Patent Search
Professional Search
With our extensive PTO experience, we provide high quality professional patent search services. For details, call us at 1-202-999-0222.
You may also want to perform your own search with our new, up to date
US Pat Search System –
Try it Here