With 3,302 Hydrogen related patents published between 2002 and 2022, Toyota Motor Corp holds the most number of Hydrogen patents across the world.
The second largest number of Hydrogen related patents were published by Linde plc with 3,111 patents, of which 49.2% was contributed by its subsidiary Linde Gmbh. The third largest numberHydrogen related patents were published by Air Liquide SA with 3,000 patents. The fourth largest number of patents were held by Panasonic Corp with 2,180 patents. The fifth largest number Hydrogen related patents were published by Air Products and Chemicals Inc with 1,943 patents.
The top five patent holders, i.e., Toyota Motor Corp, Linde plc, Air Liquide SA, Panasonic Corp, and Air Products and Chemicals Inc, together held 13,536 Hydrogen patents during the period.
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