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John Duross O’Bryan

John Duross O’Bryan

Accounting

Los Angeles, California
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Expert Details
John Duross O’Bryan Jr., C.P.A. is an expert witness in the field of Accounting. Some of the cases where John O’Bryan has been retained as an expert witness are In Re: Petco Corp, Et Al V., Et Al; Duhn Oil Tool Inc. V. Cooper Cameron Corporation; Global Health Sciences Inc. Et Al V. Richard D. Marconi.

John Duross O’Bryan Jr., C.P.A. has been involved in cases related to Intellectual Property, Securities Law, Bankruptcy Law etc. in the past. These cases have been in front of judges such as Marilyn L. Huff, Terry J. Hatter, Jr. in United States District Court, Central District Of California, U.S. District Court, Southern District Of California (San Diego), U.S. District Court, Eastern District Of California.

This is only a representative list of cases where John O’Bryan has been involved and more information is available in our Expert Witness Profiles and Expert Challenge Study. These include details about whether the testimony was challenged or not, which party retained the expert, who were the attorneys representing the parties in the case.

A previous Expert Challenge Study on John Duross O’Bryan's revealed:

Total Challenges51
Direct Challenges34
Indirect Challenges 17
Preliminary Screening Report

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Expert Challenge Study

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Expert Witness Profile

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