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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

North Carolina ranks #13 among US states for total patents filed in 2017, with 11,290 patents from 5,755 inventors across 308 cities. On a per-capita basis that is 1.1 patents per 1,000 residents, a standard benchmark for comparing state-level R&D intensity.

Top Cities in North Carolina 2017

Rank City Patents Inventors
#1 Raleigh, NC 2,051 922
#2 Cary, NC 1,603 700
#3 Durham, NC 1,144 549
#4 Charlotte, NC 940 507
#5 Chapel Hill, NC 635 345
#6 Apex, NC 501 221
#7 Morrisville, NC 447 186
#8 Winston-Salem, NC 247 152
#9 Wake Forest, NC 204 111
#10 Hickory, NC 188 77
#11 Greensboro, NC 175 129
#12 Wilmington, NC 149 94
#13 Holly Springs, NC 135 69
#14 Fuquay-Varina, NC 109 61
#15 Mooresville, NC 94 47
#16 Concord, NC 77 39
#17 Asheville, NC 75 46
#18 Huntersville, NC 74 54
#19 Waxhaw, NC 69 46
#20 High Point, NC 67 37
#21 Matthews, NC 61 37
#22 Clemmons, NC 60 29
#23 Carrboro, NC 58 30
#24 Pittsboro, NC 53 24
#25 Oak Ridge, NC 51 28

Top Inventors in North Carolina 2017

Rank Inventor City Company Patents
1 John M. Ganci, Jr. Raleigh IBM 73
2 Corville O. Allen Morrisville IBM 61
3 Aaron J. Quirk Raleigh IBM 44
3 Brian M. O'Connell Cary IBM 44
#5 Russell Speight VanBlon Raleigh Lenovo (Singapore) Pte. 38
#6 Gary D. Cudak Raleigh 37
#7 Martin G. Keen Cary IBM 34
#8 Al Chakra Apex IBM 30
#8 Nathan J. Peterson Oxford Lenovo (Singapore) Pte. 30
#8 David R. Smith Durham Intellectual Ventures 30
#11 Christopher J. Hardee Raleigh IBM 26
#11 Robert C. Williams, Jr. Durham Nike 26
#13 Rod D. Waltermann Red Mountain Lenovo (Singapore) Pte. 25
#13 Andrew R. Freed Cary IBM 25
#13 Jeffrey R. Hoy Southern Pines IBM 25
#16 John Walter Diachina Garner Ericsson 24
#17 Dana L. Price Surf City IBM 23
#18 Eric Woods Durham IBM 22
#19 John Carl Mese Cary Lenovo (Singapore) Pte. 21
#19 Todd E. Kaplinger Raleigh IBM 21
#21 Lydia M. Do Raleigh IBM 20
#21 James Phillip Luther Hickory Corning Cable Systems 20
#21 Arnold S. Weksler Raleigh Lenovo (Singapore) Pte. 20
#24 Carlos M. Pignataro Cary Cisco 19
#24 Nataraj Nagaratnam Cary IBM 19

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