Attorney at Law
Patent Bar, CO
"Diligent, always accessible! Dan was honest in his representation of himself and his work."
Dan lives in Colorado with his wife of 40 years and enjoys… read more hiking, scuba diving, and photography.
- Design Patent
- Non-Provisional Patent
- Patent Infringement
- Patent Search
- Provisional Patent
- Response to USPTO Office Action (Patent)
- Other Patent Matter
- Copyright Infringement
- Copyright Registration
- Response to USPTO Office Action (Trademark)
- Trademark Infringement
- Trademark Registration
- Trademark Search
- Other Trademark & Copyright Matter
"Really enjoyed working with Dan again. We have worked with him on several projects and every project has been fast and efficient."
"Dan continues amazing support with amazing speed and efficiency"
"Made the process easier to understand and follow."
"Very helpful and knowledgeable."
"Dan is a knowledgeable and professional patent attorney with a friendly communication style that helped me through my process easily. For myself going through the process for the first time, I was appreciative of Dan's approach."
"Perfect as always"
Shifrin Patent Law
Oct 2005 - Present
Throughout my career, I have worked closely with inventors, engineers, managers, business development personnel, and other IP attorneys. I assist companies of all sizes, as well as individuals. In partnership with my clients, I help move ideas from the invention stage through evaluation and protection towards marketing.
Swanson & Bratschen, LLC
Jan 2002 - Oct 2005
At Swanson & Bratschun, I evaluated invention disclosures; prepared and prosecuted domestic and foreign patent applications, including BPAI appeals, in a wide variety of areas; prepared patentability, infringement and validity studies and opinions; drafted patent and technology licenses and non-disclosure agreements; and prepared and prosecuted trademark applications.
Assistant General Counsel, IP
Nov 1996 - Jan 2002
At Cirrus Logic, I oversaw the intellectual property matters for the Magnetic and Optical Storage Divisions, the Peak Audio Division, the Audio Logic Division, and the Wireless Technology Division. I worked directly with engineer-inventors, managers, and outside patent counsel.
Senior Patent attorney
Jun 1992 - Nov 1996
At IBM, I supervised all intellectual property matters for the Removable Media Storage Solutions business unit. I worked closely with in-house general counsel, business development personnel, managers, engineers, and other IP attorneys at various company locations.