Overview

• Global battery patent filings rose 16.6% in 2024, reaching 7,242, with South Korea, China, and Japan leading the surge.
• South Korea topped battery filings with 1,817 patents (+10.3%), followed by China with 1,591 (+22.6%), and Japan with 1,136 (+7.8%).
• Germany's battery patents grew modestly by 1.9% to 1,112, highlighting a widening gap in innovation compared to Asian competitors.
• Germany led in solar technology patents, with filings increasing by 57.3% to 184, surpassing China and driven by nearly 30% private inventor contributions.
• The DPMA's 18-month publication delay underscores the evolving trends in energy-related technology innovation.