Articles by Kristin Casler

Orthopedic surgery expert witness advises on defective knee replacement

Orthopedic surgery expert witness advises on woman’s claim that a defective knee replacement component caused her injury. The plaintiff was diagnosed with osteoarthritis and patellofemoral malalignment. She underwent a total knee replacement using a system designed by the defendant. After…

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8th Circuit Resurrects Causation Expert Witnesses in Contaminated Baby Formula Case

Case: Scott Johnson v. Mead Johnson & Co., Nos. 13–1681, 13–2685, Eighth Circuit U.S. Court of Appeals; June 6, 2014 Background: Scott Johnson, as guardian ad litem for his infant, H.T.P., asserted claims against baby formula maker Mead Johnson &…

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Peanut Company Owner Accused of Fraud Loses Psychology Expert Witness Testimony

Case: United States of America v. Stewart Parnell, No. 1:13–cr–12 (WLS), U.S. District Court for the Middle District of Georgia, Albany Div.; June 24, 2014 Background: Stewart Parnell was the CEO of Peanut Corporation of America. He faces a 76-count…

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Ophthalmology expert witness advises on man’s vision loss from laser eye surgery

An ophthalmology expert witness advises on a case involving laser eye surgery that resulted in a man’s vision loss. Prior to obtaining laser eye surgery, the plaintiff underwent testing. The test results were normal, however, the plaintiff had worn contact…

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Products liability expert witness advises on farm worker’s injury from a harvester machine

A products liability/consumer product safety expert witness advises on a case involving a farm worker who was struck in the head from a harvester machine’s moving parts. The plaintiff farm worker suffered head injuries when he was riding on the…

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Arizona Supreme Court Allows Sexual Abuse Expert Witness Testimony, Finds Rule 702 Allows General Testimony

Case: State of Arizona v. Martin David Salazar-Mercado, No. CR-13-0244-PR, Arizona Supreme Court, May 29, 2014 Background: Martin David Salazar-Mercado was convicted in Pima County Superior Court for molesting his cousin’s children. He was sentenced to life in prison. Sexual…

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U.S. Judge in Colorado Refuses to Exclude Patent Expert Witness in Action Against Google

Case: Potter Voice Technologies LLC v. Google, Inc., et al., No. 12–cv–01096–REB–CBS, U.S. District Court, District of Colorado; March 19, 2014 Background: Potter Voice Technologies LLC owns patent number 5,729,659 (the ′659 patent). The patent describes a method and apparatus…

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Federal Circuit Says Patent Expert Witnesses Wrongly Barred, Resurrects Smartphone Action in Apple v. Motorola

Case: (Apple Inc. et al v. Motorola Inc., et al., Nos. 2012–1548, 2012–1549, U.S. Court of Appeals for the Federal Circuit; April 25, 2014 Background: Smartphone manufacturers Apple Inc. and Motorola Inc. asserted patent infringement claims against each other. They…

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Plaintiff’s Forensic Engineering Expert Witness Admitted in Catastrophic Rollover Case in Maryland Federal Court

Case: Darin Ruark v. BMW of North America, LLC, et al., No. ELH–09–2738, U.S. District Court District of Maryland; January 30, 2014 Background: Darin Ruark was 17 in 2006, when the 1995 BMW 325is coupe he was riding in rolled…

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Forensic accounting expert witness advises on lost services valuation for decedent’s family

An investigative accounting expert witness advises on elderly mother claims of lost services from shooting death of son. Plaintiff is an elderly woman whose son fled from police after a traffic stop. Police shot and killed her son, who was…

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