Closing Arguments in Apple vs. Samsung Lawsuit Begin

iStock/Thinkstock(SAN JOSE, Calif.) -- Closing arguments start Tuesday in Apple’s landmark lawsuit against Samsung over smartphone patents. At stake is the ownership of key elements of smartphone technology, and possibly dominance of the $330-billion-a-year market for smartphones worldwide.

The suit’s roots date back to 2007, when Apple unveiled its then-revolutionary iPhone, and Samsung scrambled to offer competing features with its Galaxy, which made use of Google’s Android operating system.

During the past three years of smartphone patent litigation between the companies, Samsung’s share of the market has grown, and Samsung is now the market leader.

Two years ago, a federal jury agreed Samsung had infringed on Apple patents, and Samsung was ordered to pay $900 million in damages. The company appealed that decision.

On Monday, in U.S. District Court for Northern California in San Jose, a jury of four men and four women was given 53 pages of instructions on how to decide whether patent infringement occurred, and, if infringement did occur, how to calculate damages. When the jury is sent behind closed doors later this week to deliberate, the most contentious issues before them will include:

Who infringed on who’s patents?

Samsung claims Apple violated two Samsung patents, one of which Samsung alleges makes the iPhone’s FaceTime feature possible. Apple says it has not infringed on those or any other Samsung patents. Apple claims nine of Samsung’s smartphones and one of Samsung’s tablets infringe on five Apple patents.

Who owes what to whom?

Apple wants $2.2 billion in damages. Samsung wants $6 million.

Value of the Apple’s patents on which it claims infringement.

Samsung’s expert witnesses have argued Apple’s patents are worth around $38 million -- a small fraction of the $2.2 billion Apple wants in damages.

Whom should Apple have sued?

Samsung contends that the patents Apple claims were infringed on were developed not by Samsung but primarily by Google, as part of Google’s Android operating system. Google is not a party to the lawsuit.

Neither Samsung nor Apple immediately responded to ABC News' request for comment.

Copyright 2014 ABC News Radio

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