This statistic displays the largest machine tools companies ranked by number of active machine tools patent families owned worldwide as of April 2020. The ranking is based on data provided by PatentSight. As of April 16th, Nippon Steel's patent portfolio included 6,362 patent families, making the company the world's largest owner of machine tools patents. The Japanese DISCO Corporation ranked second with 3,901 families.
Largest machine tools patent owners worldwide as of April 2020, by number of active patent families
Characteristic
Number of active patent families*
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* A patent family is defined as a group of patent documents all of which have the same set of priorities. I.e., it is a group of patent documents that protect the same invention across authorities.
Machine tool patents are defined as all patents that fall into the following International Patent Classification (IPC) or Cooperative Patent Classification (CPC) groups:
A62D, B21B, B21C, B21D, B21F, B21G, B21H, B21J, B21K, B21L, B23B, B23C, B23D, B23F, B23G, B23H, B23K, B23P, B23Q, B24B, B24C, B24D, B25B, B25C, B25D, B25F, B25G, B25H, B26B, B26D, B26F, B27B, B27C, B27D, B27F, B27G, B27H, B27J, B27K, B27L, B27M, B27N, B30B
Their subordinated groups are included i.e. B21B 1.
The owner of a patent includes all patents owned by a company and its subsidiaries (by at least 50%) based on comprehensive research on corporate structures, M&A, Spin-offs, company names changes, patent transactions. PatentSight also tracks former names of companies and subsidiaries, ongoing mergers and acquisitions, acquisitions of the past, reassignments, companies that have the same applicant, and transliterations by patent offices.
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LexisNexis PatentSight. (April 16, 2020). Largest machine tools patent owners worldwide as of April 2020, by number of active patent families [Graph]. In Statista. Retrieved August 25, 2024, from https://www.statista.com/statistics/1112620/worldwide-machine-tools-patent-owners/
LexisNexis PatentSight. "Largest machine tools patent owners worldwide as of April 2020, by number of active patent families." Chart. April 16, 2020. Statista. Accessed August 25, 2024. https://www.statista.com/statistics/1112620/worldwide-machine-tools-patent-owners/
LexisNexis PatentSight. (2020). Largest machine tools patent owners worldwide as of April 2020, by number of active patent families. Statista. Statista Inc.. Accessed: August 25, 2024. https://www.statista.com/statistics/1112620/worldwide-machine-tools-patent-owners/
LexisNexis PatentSight. "Largest Machine Tools Patent Owners Worldwide as of April 2020, by Number of Active Patent Families." Statista, Statista Inc., 16 Apr 2020, https://www.statista.com/statistics/1112620/worldwide-machine-tools-patent-owners/
LexisNexis PatentSight, Largest machine tools patent owners worldwide as of April 2020, by number of active patent families Statista, https://www.statista.com/statistics/1112620/worldwide-machine-tools-patent-owners/ (last visited August 25, 2024)
Largest machine tools patent owners worldwide as of April 2020, by number of active patent families [Graph], LexisNexis PatentSight, April 16, 2020. [Online]. Available: https://www.statista.com/statistics/1112620/worldwide-machine-tools-patent-owners/