While it’s challenging to list the top 10 significant rulings in technology-related legal cases for this year as these cases are continuously evolving, here are some notable ones from 2021 so far:

1. Google LLC v. Oracle America, Inc.: In April 2021, the Supreme Court ruled in favor of Google, stating that their use of Oracle’s Java APIs fell under fair use. This decision resolved a long-standing copyright dispute between the tech giants.

2. Facebook, Inc. v. Federal Trade Commission (FTC): In June 2021, a federal judge dismissed the FTC’s antitrust complaint against Facebook, stating that the FTC failed to provide enough evidence to support their claims. However, the decision allowed the FTC to amend its complaint and refile.

3. Home Depot data breach class-action lawsuit: In May 2021, Home Depot agreed to pay $17.5 million to settle a class-action lawsuit resulting from their 2014 data breach, which compromised the personal information of approximately 50 million customers.

4. Epic Games, Inc. v. Apple Inc.: In a highly watched trial, a ruling is pending in this ongoing legal battle between Epic Games and Apple. Epic Games accused Apple of anticompetitive behavior and seeks to establish alternate app distribution methods on iOS, challenging the App Store’s payment system.

5. Huawei extradition case: In May 2021, a ruling by the Canadian Supreme Court cleared the way for the extradition of Huawei’s CFO, Meng Wanzhou, to the United States. This decision relates to charges against her for bank fraud, violating U.S. sanctions on Iran, and thus, carries significant implications for the technology industry and U.S.-China relations.

6. Garmin Wiper class-action lawsuit: In June 2021, Garmin agreed to pay $5.75 million to settle a class-action lawsuit alleging that the company misled its customers by claiming their activity-tracking wearable devices accurately measured heart rates.

7. New York v. Bitfinex and Tether: In February 2021, Bitfinex and Tether settled with the New York Attorney General’s Office over allegations relating to commingling funds, assisting New York traders, and misleading investors. The settlement required them to pay $18.5 million in penalties and cease trading activity in New York.

8. Apple Inc. v. Corellium LLC: In February 2021, Apple lost a legal battle against Corellium, a company that develops virtualization software for iOS app security testing. A Florida court ruled that Corellium’s creation of virtual iOS environments for security research constituted fair use and does not infringe on Apple’s copyright.

9. Amazon warehouse worker surveillance case: In February 2021, the Western District of Washington allowed an Amazon warehouse worker’s case to proceed. The worker alleged that Amazon violated privacy laws through their intense surveillance practices, including biometric data collection.

10. European Commission v. Amazon: In November 2020, the European Commission filed antitrust charges against Amazon over allegations that the company used non-public seller data to gain an unfair advantage. Although not resolved in 2021, this case remains significant and is being closely monitored.

Please note that the significance of these rulings depends on the context and specific perspectives of various stakeholders. Additionally, ongoing cases may see future developments that can affect their impact on the technology industry.