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.
Price Sheet
DPS has a collection of electronic file histories readily available for download. Files not in our inventory are available within hours depending on time of day requested. All Files and Documents are nicely bookmarked and with OCR searchable text.
We accept payment via check or credit card (Visa, MasterCard, or American Express).
Foreign Patent File Histories
DPS has contacts in every country internationally with patent offices and foreign vendors and is able to provide the best pricing and service available.
Prices and delivery vary. See Foreign File Fees & Services.
Send orders and files to order@ptocertifiedcopies.com
Ship physical documents to:
DPS Files, Inc.
1411 Washington Dr
Stafford, VA 22554
For questions or follow-up, you can call us at 202-999-0222.
We always confirm receipt of your documents via email.
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