Quinn also questioned how many people who bought Samsung phones would have really considered an Apple phone instead, something that cuts to its lost profits claim. Apple's own market research, revealed earlier in the case, showed that its falling market share was due in part to shifting consumer preference for features such as larger screens.
With Samsung's cross-examination of Vellturo complete, Apple rested its case. Next, Samsung will begin its defense of the charges.
The case is 12-00630, Apple v. Samsung Electronics et al, at the U.S. District Court for the Northern District of California.
Martyn Williams covers mobile telecoms, Silicon Valley and general technology breaking news for The IDG News Service. Follow Martyn on Twitter at @martyn_williams. Martyn's e-mail address is email@example.com