Attorney Record
Henry Charles Thumann · California Lawyer
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Henry Charles Thumann is on California’s State Bar roll, #31519, admitted in 1961; license status: active as of 22 July 2026. The address of record is in Washington. Practice areas listed in the registry: Aviation Law, Business Law and Litigation. 13 case appearances are listed on this profile. The employer on the official record is O'Melveny & Myers. Registry record updated 11 September 2026; license information comes from the State Bar.
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Verified against official State Bar of California records · record last updated 11 September 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 | #31519 |
|---|---|
| License status | Active |
| Admitted | 1961 |
| Law school | Harvard Univ Law School |
| Firm | O'Melveny & Myers |
| Location | Washington |
| 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 |
|---|---|---|---|---|
| California CNG, Inc. v. Southern California Gas Co. | Counsel for the defendant | 96 F.3d 1193 | U.S. Court of Appeals for the Ninth Circuit | 19 September 1996 |
| Marshall v. Bankers Life & Casualty Co. | Counsel for the respondent | 2 Cal. 4th 1045 | California Supreme Court | 9 July 1992 |
| Amalgamated Clothing & Textile Workers Union v. Murdock | Counsel for the respondent | 861 F.2d 1406 | U.S. Court of Appeals for the Ninth Circuit | 22 November 1988 |
| Forro Precision, Inc. v. International Business MacHines Corporation | Counsel for the respondent | 745 F.2d 1283 | U.S. Court of Appeals for the Ninth Circuit | 26 October 1984 |
| Foundation for San Francisco's Architectural Heritage v. City of San Francisco | Counsel for the respondent | 106 Cal. App. 3d 893 | California Court of Appeal | 12 June 1980 |
| Los Angeles Memorial Coliseum Commission v. National Football League | Counsel for the defendant | 484 F. Supp. 1274 | U.S. District Court, Central District of California | 21 February 1980 |
| Arizona v. Environmental Protection Agency | Counsel for the petitioner | 526 F.2d 1391 | U.S. Court of Appeals for the Ninth Circuit | 19 December 1975 |
| McCook v. Standard Oil Company of California | Counsel for the defendant | 393 F. Supp. 256 | U.S. District Court, Central District of California | 7 February 1975 |
| City of Los Angeles v. Japan Air Lines Co., Ltd. | Counsel for the respondent | 41 Cal. App. 3d 416 | California Court of Appeal | 28 August 1974 |
| Gerald L. Price v. Trans World Airlines, Inc. | Counsel for the respondent | 481 F.2d 844 | U.S. Court of Appeals for the Ninth Circuit | 29 June 1973 |
| Shapiro, Bernstein & Co., Inc. v. 4636 S. Vermont Ave., Inc., a California Corporation Doing Business as Reed's Music Store | Counsel for the appellant | 367 F.2d 236 | U.S. Court of Appeals for the Ninth Circuit | 29 September 1966 |
| United States v. General Motors Corporation | Counsel for the defendant | 216 F. Supp. 362 | U.S. District Court, Southern District of California | 14 March 1963 |
| American Society of Composers, Authors & Publishers v. Superior Court | Counsel for the petitioner | 207 Cal. App. 2d 676 | California Court of Appeal | 17 September 1962 |
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 O'Melveny & Myers.
The law school on the record is Harvard University Law School.
Admitted to the California Bar in 1961 · 65 years on the roll.
Practice areas on the record: Aviation Law, Business Law and Litigation.
13 appearances as counsel in published opinions are on this record.
The address of record is in Washington, DC, outside California; the California licence is unaffected by where the attorney keeps an office.
Confirm Henry Charles Thumann’s license status, bar number #31519, 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.
On the record nearby
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