The number of women awarded patents has soared over the last several decades far beyond previously reported figures, and the percentage of trademarks granted to women has more than doubled. The study found that women had a higher representation among trademark holders than patent owners; in 2010, 18 percent of all patents granted went to women while 33 percent of all trademarks granted to individuals and sole proprietorships went to women. The NWBC, a leading voice for women business owners, decided to examine the topic of intellectual property because it often is considered an indicator of entrepreneurial activity. The top categories for women-owned patents were chemistry, bio-affecting drugs, semiconductor device manufacturing, and furnishings. The biggest increases, however, in women-obtained patents came in data processing, surgery, and electrical computers and digital processing systems.