Patent File Histories
Keyword searchable and bookmarked.
Non-Patent Literature
Nicely tabbed NPL.
Assignments
Assignments, Reel and Frame copies.
Certification
Rapid certification, directly with the PTO.
Delivery Options
Convenient options, plus a portal for frequent users
Patent Downloads
Get PDF patents instantly
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Legalization & Authentication
We legalize and authenticate a wide variety of documents.
IP Search Services
Professional IP and patent searching.
DPS provides Non-Patent Literature (NPL) from patent files or if needed will search and obtain them from various sources, services, and the same tools available to examiners. We are experts in hard to find non-patent literature and other publications such as: