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عنوان فارسی مقاله:
پیروزی، از دست دادن یا قرعه کشی؟ سرنوشت اختراعات ثبت شده
عنوان انگلیسی مقاله:
Win, lose or draw? The fate of patented inventions
سال انتشار : 2016
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بخشی از مقاله انگلیسی:
2. Data on US inventions
We make use of a US inventor survey (Walsh et al., 2015; Walsh and Nagaoka, 2009). For the survey, we drew a systematic random sample of 9060 (out of 32,390) triadic patents (that had been 2 We adopt the term “preemptive” from Gilbert and Newbery (1982). 3 Motohashi (2008) is an exception. Although Giuri et al. (2007) and Torrisi et al. (2015) combine data on reasons for patenting (e.g., blocking or not) and data on commercialization to measure their rate of (supposed) strategic non-use, they do not have data on ex post reasons for non-use of patented inventions to measure the (consequent) preemptive non-use. applied for at the EPO and JPO and granted by the USPTO) with at least one US-addressed inventor and priority years from 2000 to 2003, stratified by NBER technology class. Taking the first available US inventor as the representative inventor, and after randomly drawing one patent for inventors with multiple patents in our sample, we have 7933 unique US-based inventors in our mail-out sample. After sending the survey packet (with first-class stamps and individualized, signed cover letters), follow-up letters and a second-wavemailing ofthe fullpacket(Dillman, 2007), we received 1919 responses (24%). After excluding undeliverable, deceased, etc., from the denominator, we have an adjusted response rate of 32%. A detailed non-response bias analysis shows little evidence of non-response biases that were either statistically or substantively significant.4 For this study, we limit our sample to responses from inventors working in firms, leading to 1739 cases. Triadic patents are a subset of US patents, over-representing those that may have significant value (enough to take on the expense of filing in three jurisdictions) and a potential global market. Thus, this population may underestimate the rate of preemptive patents. By comparing rates of preemptive non-use to other forms of non-use, we can to some extent control for this limitation in our sample. Still, it is important to note that the overall rates of non-use patents compared to commercially used patents may be lower in our sample than in some prior samples drawn from the general population of patented inventions. There may also be concerns that our sample over-represents large firms. However, a detailed comparison of the firms in our sample shows that the firm size distribution in our sample is not significantly different from the underlying population of innovating firms (Jung, 2009). In particular, there are a substantial number of patents from small and medium firms in our sample (about 20% of the sample of patents come from firms with less than 500 employees).
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کلمات کلیدی:
The dual frontier: Patented inventions and prior scientific advance ... science.sciencemag.org/content/357/6351/583 by M Ahmadpoor - 2017 Aug 11, 2017 - Ahmadpoor and Jones devised a metric for the “distance” between patentable inventions and prior research to study this question. [DOC]Research Policy www.sppm.tsinghua.edu.cn/eWebEditor/UploadFile/20160623043720984.doc by G de Rassenfosse - 2016 - Cited by 12 - Related articles Abstract: Evidence suggests that patents facilitate technology transactions but the reasons for the effect are unclear. Patents ... The Fate of Patented Inventions. Win, lose or draw? the fate of patented inventions - Georgia Tech ... https://spp.gatech.edu/publications/pub/4214 Using information from a survey of US inventors, this study explores the reasons for patent non-use and different types of non-use at the patent level, and how ... Recently Patented Inventions- October 7, 1911 - Scientific American https://www.scientificamerican.com/article/recently-patented-inventions-1911-10-07/ Recently Patented Inventions- October 7, 1911. Share on ..... —From the fertile mind of Svante Arr-henius we have an article on the Fate of the Planets. Recently Patented Inventions - December 28, 1907 - Scientific American https://www.scientificamerican.com/article/recently-patented-inventions-1907-12-28/ Pertaining to Apparel BUSTLE.EMILY H. WRIGHT, Port Washington, N. 5T. In this patent the invention relates to wearing apparel, and its object is to provide a ...
