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Shares of

Taser

(TASR)

rose Friday after the Scottsdale, Ariz., stun-gun maker said a U.S. District Court in Texas dismissed a wrongful death lawsuit against the company. The company said this was the 10th wrongful death or injury lawsuit that has been dismissed or that the company has won in the past 18 months. Taser climbed 31 cents, or 4.3%, to $7.55.

Faro Technologies

(FARO) - Get FARO Technologies, Inc. Report

dropped more than 4% after a rival company, Romer CimCore, said the U.S. Patent Office had rejected all of Faro's arguments in a patent re-examination request as part of a dispute between the firms. The two companies make measurement devices that are used by engineers to design and inspect various manufactured products. Faro's shares dropped 86 cents, or 4.2%, to $19.59 in recent trading.

Nutritional snack maker

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J&J Snack Foods

(JJSF) - Get J & J Snack Foods Corp. Report

fell after the Pennsauken, N.J., company's stock split went into effect. Shares of J&J Snack Foods were off 79 cents, or 2.5%, to $31 in recent trading.

OYO Geospace

( OYOG) rose 23% after the Houston-based instrument maker said it signed a $7 million contract with the Bureau of Geophysical Prospecting, a seismic data collector, for a retrievable seabed data-acquisition system. Shares of OYO rose $6.96 to $36.88 recently.

Shares of medical-device maker

FoxHollow Technologies

( FOXH) jumped on word Piper Jaffray lifted its rating on the shares to outperform from market perform. FoxHollow was rising $4.65, or 15.4%, to $34.77 in heavy trading.