David Cain

Registered Patent Attorney

Specializing in the preparation and prosecution of patent application before the United States Patent and Trademark Office.

Experienced in all phases of complex prosecution including reissues, reexaminations, interferences and appeals.

Former Primary Examiner with the USPTO, examining cryptography, computer security, spread spectrum, cellular phone system, and directional radio.

Registered to practice before the United States Patent and Trademark Office
licensed attorney in Virginia and Texas

Focusing on US patent prosecution, particularly complex prosecution including:

. Reissues
. Reexaminations
. Interferences
. Appeals to the Board of Patent Appeals and Interferences

Former Primary Examiner with the United States Patent and Trademark Office

. 13 years examining patents in the Special Law Group, examining cryptography, computer security, video scrambling and spread spectrum

Former lead attorney of the patent prosecution group at Thompson & Knight, LLP, Dallas, Texas

Experience in the preparation and prosecution of:

. Cryptography
. Computer Security
. Video Scrambling
. Spread Spectrum
. Computer Networks
. Computer Software
. Computer Hardware
. Cellular Phone Systems
. Directional Radio System
. E-Commerce Protocols
. Electrical Circuits
. Semiconductors
. Mechanical Devices
. Business Methods

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LINKS

Crypto

Patent Law

US Patent and Trademark Office

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Power belongs to those who dare . . . Sapere Aude