With 702 patents held between 2002 and 2022, Halliburton Co holds the most number of ESG patents in the Construction sector in the North America region, of which 97.0% was contributed by Halliburton Energy Services Inc.
The second largest number of patents were held by Hitachi Ltd with 337 ESG patents, of which 79.8% was contributed by Hitachi Construction Machinery Co Ltd. The third largest number of patents were held by General Electric Co with 309 ESG patents. The fourth largest number of patents were held by Komatsu Ltd with 297 ESG patents. The fifth largest number of patents were held by Gebr Knauf KG with 229 ESG patents, of which 81.7% was contributed by United States Gypsum Company.
The top five patents holders, i.e., Halliburton Co, Hitachi Ltd, General Electric Co, Komatsu Ltd, and Gebr Knauf KG, together held 1,874 ESG patents during the period.
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