by Brandon Shackelford[1]

According to the Business R&D and Innovation Survey (BRDIS), one out of five U.S. companies with research and development applied for a patent from the U.S. Patent and Trademark Office (USPTO) in 2008.[2] These companies applied for at least 136,751 U.S. patents and were issued at least 65,879 patents in 2008. Patents are a legal means used by inventors to exclude others from using their invention and are commonly used by economists as a proxy measure for one type of innovation output or success.[3] Because of the interest in measuring the output of R&D and other innovation-related activities, a number of questions pertaining to patents and other forms of intellectual property (IP) protection were included on BRDIS. This InfoBrief presents summary findings from the 2008 BRDIS pilot survey on the patenting activity of U.S. businesses with R&D.

Patent Applications by Subsector, Industry, and Size of Company

Companies classified in two North American Industrial Classification System (NAICS) subsectors and one industry group accounted for 56% of the patent applications reported to BRDIS by companies with R&D in 2008: computer and electronic products (NAICS 334), software publishing (NAICS 5112), and chemicals (NAICS 325) (table 1). These three industries accounted for a similarly large share (59%) of the BRDIS total worldwide R&D expense estimate, but the relationship between R&D spending and patenting varied widely among their respective industries.[4] For example, compared with companies in the pharmaceutical industry (NAICS 3254), companies in the software publishing industry had less than half the worldwide R&D expense but about twice as many patent applications.

Because patent applications are often outputs of the R&D process, it is common to analyze the ratio of R&D spending to patent applications. Overall there was $2.4 million of worldwide R&D expense per patent application in 2008. This ratio varies widely from industry to industry, but these differences may reflect the relative importance placed on patenting among industries.[5]For example, the fact that the ratio of $6.3 million per patent application for the food manufacturing industry (NAICS 311) is much higher than most other industries may simply reflect that food companies apply for patents less frequently than companies in other industries.

Both small companies (5–499 domestic employees) and the largest companies (25,000 or more domestic employees) had a higher share of patent applications than worldwide R&D expense in 2008 (table 2). Early research into the relationship between R&D and patenting also found that small R&D firms tended to have more patents per dollar of R&D than larger R&D firms, excepting the very largest companies.[6] This early research, and much of the later research in the field, relied on R&D data from publicly traded companies matched to public patent data and carried the caveat that findings related to small firms were possibly subject to selection bias. BRDIS data are not subject to this limitation and are well suited for further microeconomic research into the relationship between R&D and patenting and productivity.[7]

Propensity to Patent and Distribution of Patent Applications

BRDIS data indicate that industries vary widely in terms of their propensity to patent as illustrated in figure 1. Overall, 21% of companies with R&D reported patent applications in 2008. Companies in industries such as food manufacturing and software publishing, where patents are less likely to be an important form of IP protection, were less likely to report patent applications on average. In contrast, in industries where patents are considered very important to protecting IP, such as basic chemicals manufacturing (NAICS 3251) and semiconductor manufacturing (NAICS 3344), companies were much more likely to report patent applications.

With few exceptions, companies in industries with a high propensity to patent tended to apply for more patents than the average company (figure 1 and table 3). For example, companies classified in the semiconductor manufacturing industry were more likely than the average company to apply for patents in 2008. And among companies with R&D that applied for patents in 2008, companies classified in the semiconductor manufacturing industry applied for more than twice as many patents as the average company (34.0 versus 14.6 mean patent applications).

Patenting Outside the United States

Patent laws differ from country to country, so companies that want to protect their intellectual property in markets outside the United States must apply for patents in other jurisdictions. Because the cost required to file for and enforce patents in multiple jurisdictions can be high, economists often consider the act of applying for patents in multiple jurisdictions as an indicator of high-value inventions (or at least ones in which the company believes to have value outside of a local market). BRDIS asked companies to report the percentage of their U.S. patent applications for which they have corresponding applications (or plans for applications) in foreign jurisdictions. Among companies with R&D and U.S. patent applications, the mean value for this question was 37.7% and its median was 0% (table 4). Although most of the companies reporting patent activity to BRDIS did not apply for patent protection in foreign jurisdictions in 2008, some industries reported very high rates of foreign patenting. Nine industries tracked by BRDIS had median values of 100% for the foreign patenting question. All but one of these industries were in the manufacturing sector. The one nonmanufacturing industry in this group was scientific R&D services (NAICS 5417), which includes many biotechnology companies. These biotechnology companies are more similar to pharmaceutical manufacturers than to other nonmanufacturing companies in terms of their patenting strategies.

Patent Licensing Revenue

Although patents are most commonly used by companies to prevent competitors from using certain inventions, companies may also choose to grant licenses so that others may use the patented technology in exchange for a fee or royalties. BRDIS asked companies to report their revenue from licensing patents to others. Results from this question indicate that U.S. companies with R&D earned at least $42.1 billion in patent licensing revenue in 2008, or 0.4% of the total worldwide revenue estimated for these companies (table 5).[8] Patent licensing revenue is concentrated in a few industries, with medical equipment and supplies (NAICS 3391), pharmaceutical manufacturing, and computer and electronic products accounting for more than half of the total estimate.

Data Sources and Limitations

The sample for BRDIS was selected to represent all for-profit companies with five or more domestic employees, publicly or privately held, that perform or fund R&D or engage in innovative activities in the United States. For 2008, a total of 39,553 companies were sampled, representing 1,926,012 companies in the population. Because the statistics from the survey are based on a sample, they are subject to both sampling and nonsampling errors.

Counts of patent applications and issued patents produced by BRDIS are lower-bound estimates and differ from the administrative patent data published by the USPTO in a number of ways. USPTO data include all patent data, whereas BRDIS estimates provided here are only for companies that have R&D and have five or more U.S. employees. In addition, foreign-owned companies are instructed by BRDIS to report for only the portion of their company domiciled in the United States (and its subsidiaries). At the time BRDIS data were tabulated, there was no basis for imputing patent applications.

For an overview of worldwide R&D data collected by BRDIS see NCSES InfoBrief, Business R&D Performed in the United States Cost $291 Billion in 2008 and $282 Billion in 2009 (NSF 12-309) at http://www.nsf.gov/statistics/infbrief/nsf12309/. The full set of detailed tables from the 2008 BRDIS will be available in the report R&D and Innovation in Business: 2008 athttp://www.nsf.gov/statistics/industry/. Individual detailed tables from the 2008 survey may be available in advance of publication of the full report. For further information, contact  Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript .

Notes

[1] Brandon Shackelford is principal consultant at Twin Ravens Consulting, Austin, TX. For further information, contact Raymond M. Wolfe, Research and Development Statistics Program, National Center for Science and Engineering Statistics, National Science Foundation, 4201 Wilson Boulevard, Suite 965, Arlington, VA 22230 ( Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript ; 703-292-7789).

[2] Businesses with R&D are those that either pay for or perform R&D. Copy of 2008 BRDIS is available athttp://nsf.gov/statistics/question.cfm#13. Questions relating to patenting are in section 6 of survey.

[3] Not all patents are indications of innovation. Patenting may be obtained to block rivals, negotiate with competitors, or raise funding from investors. Hall BH. 2008. Patents. In Durlauf SN, Blume LE, editors, The New Palgrave Dictionary of Economics, 2nd ed. Palgrave Macmillan. Available at http://www.dictionaryofeconomics.com/article?id=pde2008_P000039. Accessed 9 March 2012.

[4] Although BRDIS also collected information on business R&D that is paid for by others, such as customers, these data are not included in this analysis. Ownership of IP produced from this type of R&D is often assigned to the party paying for the R&D.

[5] Jankowski J. 2012. Business Use of Intellectual Property Protection Documented in NSF Survey. InfoBrief NSF 12-307. Arlington, VA: National Science Foundation, National Center for Science and Engineering Statistics. Available athttp://nsf.gov/statistics/infbrief/nsf12307/.

[6] Bound J, et al. 1984. Who Does R&D and Who Patents? In Griliches Z, editor, R&D, Patents, and Productivity, pp. 21–54. Chicago, IL: University of Chicago Press. Available at http://www.nber.org/chapters/c10043.pdf.

[7] Preliminary econometric analysis of BRDIS data indicates nonlinear relationship between worldwide R&D expense and U.S. patent applications. An ordinary least square regression using just the logarithm of worldwide R&D expense and its square as explanatory variables accounts for more than one-third of the variation in the logarithm of U.S. patent applications.

[8] Figures presented here for patent licensing revenue are lower-bound estimates because no adjustment was made to account for item nonresponse.