Attorney RecordIntellectual Property
Kurt B. Opsahl · Intellectual Property Attorney
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Kurt B. Opsahl is on California’s State Bar roll, #191303, admitted in 1997; license status: active as of 22 July 2026. The address of record is in Middletown. Practice areas listed in the registry: Constitutional Law and Intellectual Property. 9 case appearances are listed on this profile. The employer on the official record is Filecoin Foundation. Registry record updated 19 August 2026; license information comes from the State Bar.
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Verified against official State Bar of California records · record last updated 19 August 2026. Contact information on this page comes from the public record and is shown free, the registry never paywalls it.
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The record
| State Bar number | #191303 |
|---|---|
| License status | Active |
| Admitted | 1997 |
| Law school | Univ of California Berkeley |
| Firm | Filecoin Foundation |
| Location | Middletown |
| Registry identity | Official State Bar record |
Practice areas
Practice areas are self-reported to the State Bar or added by the attorney; listing one is not a State Bar certification.
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Cases of record
From published opinions naming this attorney as counsel. The attorney has not yet confirmed these records.
| Case | Appeared for | Citation | Court | Decided |
|---|---|---|---|---|
| National Security Letter v. Sessions | Counsel for the appellant | 863 F.3d 1110 | U.S. Court of Appeals for the Ninth Circuit | 17 July 2017 |
| Stephanie Lenz v. Universal Music Corp. | Counsel for the respondent | 815 F.3d 1145 | U.S. Court of Appeals for the Ninth Circuit | 17 March 2016 |
| Jewel v. National Security Agency | Counsel for the appellant | 810 F.3d 622 | U.S. Court of Appeals for the Ninth Circuit | 18 December 2015 |
| Stephanie Lenz v. Universal Music Corp. | Counsel for the respondent | 801 F.3d 1126 | U.S. Court of Appeals for the Ninth Circuit | 14 September 2015 |
| Jewel v. National Security Agency | Counsel for the plaintiff | 965 F. Supp. 2d 1090 | U.S. District Court, Northern District of California | 23 July 2013 |
| Righthaven Llc v. Wayne Hoehn | Counsel for the respondent | 716 F.3d 1166 | U.S. Court of Appeals for the Ninth Circuit | 9 May 2013 |
| Hepting v. AT & T Corp. | Counsel for the appellant | 671 F.3d 881 | U.S. Court of Appeals for the Ninth Circuit | 29 December 2011 |
| Jewel v. National Security Agency | Counsel for the appellant | 673 F.3d 902 | U.S. Court of Appeals for the Ninth Circuit | 29 December 2011 |
| Hepting v. AT & T Corp. | Counsel for the plaintiff | 439 F. Supp. 2d 974 | U.S. District Court, Northern District of California | 20 July 2006 |
Appearances in published opinions, drawn from public court records. Cases of record are matters of public record and are not a representation of results; past results do not guarantee a similar outcome. Legal information, not legal advice.
Each case name opens the published opinion it comes from. Is a case not this attorney’s? The attorney can claim this profile and mark it as not theirs, which removes it from this page; anyone can report an error through Help & Support.
On the official record
The employer on the official record is Filecoin Foundation.
A firm or employer website answers at fil.org, the domain of the email address on the State Bar record.
The law school on the record is UC Berkeley School of Law.
Admitted to the California Bar in 1997 · 29 years on the roll.
Practice areas on the record: Constitutional Law and Intellectual Property.
9 appearances as counsel in published opinions are on this record.
The address of record is in Middletown, DE, outside California; the California licence is unaffected by where the attorney keeps an office.
Confirm Kurt B. Opsahl’s license status, bar number #191303, and official disciplinary or administrative history directly with the State Bar of California at apps.calbar.ca.gov before retaining counsel. This profile does not reproduce the complete official history; missing information does not mean no discipline. This page indexes public-record data and identifies verified claims; it does not rate attorney quality or predict results.
Legal information, not legal advice.
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