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What can explain the Chinese patent explosion?
Eberhardt, Markus; Helmers, Christian; Yu, Zhihong - In: Oxford economic papers 69 (2017) 1, pp. 239-262
Persistent link: https://www.econbiz.de/10011744436
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The importance (or not) of patents to UK firms
Hall, Bronwyn H.; Helmers, Christian; Rogers, Mark; … - In: Oxford economic papers 65 (2013) 3, pp. 603-629
Persistent link: https://www.econbiz.de/10009779913
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Introduction to the special issue on innovation and intellectual property
Greenhalgh, Christine; Haskel, Jonathan; Helmers, Christian - In: Oxford economic papers 65 (2013) 3, pp. 597-602
Persistent link: https://www.econbiz.de/10009779916
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Technology entry in the presence of patent thickets
Hall, Bronwyn H.; Graevenitz, Georg von; Helmers, Christian - In: Oxford economic papers 73 (2021) 2, pp. 903-926
Persistent link: https://www.econbiz.de/10012594489
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Introduction to the Special Issue on Innovation and Intellectual Property
Greenhalgh, Christine; Haskel, Jonathan; Helmers, Christian - In: Oxford economic papers 65 (2013) 3, pp. 597-596
Persistent link: https://www.econbiz.de/10010138876
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The importance (or not) of patents to UK firms
Hall, Bronwyn H.; Helmers, Christian; Rogers, Mark; … - In: Oxford economic papers 65 (2013) 3, pp. 603-602
Persistent link: https://www.econbiz.de/10010138877