(KCEN) -- The who-copied-whom debate is back on in a San Jose, California federal courtroom.
Apple is trying to get an injunction against the sale of several Samsung mobile phones.
And Samsung wants to get a one-billion dollar patent infringement verdict against the company thrown out.
The latest legal wrangling for control of the smartphone market made waves on Wall Street.
Apple stock dropped more than 6 percent yesterday but rallied today.