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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
CD

Charles Draper — 8 Patents

SDSquare D: 3 patents #171 of 756Top 25%
CRCree: 2 patents #354 of 639Top 60%
ILIdeal Industries Lighting: 2 patents #93 of 178Top 55%
CUCree Lighting Usa: 1 patents #13 of 45Top 30%
Thomasville, NC: #7 of 86 inventorsTop 9%
North Carolina: #6,637 of 45,564 inventorsTop 15%
Overall (All Time): #600,572 of 4,157,543Top 15%
8 Patents All Time
Charles Draper has been granted 8 US patents while listed as an inventor at Square D. The first was granted in 1981 and the most recent in March 2024. Charles Draper ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Charles Draper in Thomasville, NC, US.

Patents per Year

Patents granted per year, 1981 to 2024Bar chart with a peak of 1 patents in 1981.peak 11981: 1 patents19811982: 1 patents19821986: 1 patents19862016: 1 patents20162018: 1 patents20182021: 1 patents20212023: 1 patents20232024: 1 patents2024

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11933476 Luminaires and components thereof Jin Hong Lim, Mark Lackey, Rob Sanchez, Daniel Van Epps, Brad Thomas 2024-03-19
D988581 Lighting fixture Jin Hong Lim, Mark Lackey, Rob Sanchez, Daniel James Van Epps, Jr., Bradley S. Thomas +1 more 2023-06-06
11092313 Luminaires and components thereof Jin Hong Lim, Mark Lackey, Rob Sanchez, Daniel James Van Epps, Jr., Brad Thomas 2021-08-17
10094548 High efficiency LED lamp Kurt S. Wilcox, Jason Taylor, Paul Kenneth Pickard, Gerald H. Negley, Mark Edmond 2018-10-09 $7,709,000
9240528 Solid state lighting apparatus with high scotopic/photopic (S/P) ratio Michael John Bergmann, James Ibbetson, David Clatterbuck, Nalini Gupta 2016-01-19 $3,655,000
4578732 Ground fault circuit interrupter including snap-acting contacts Terry E. Franks 1986-03-25 $5,751,000
4309681 Ground fault receptacle Raymond H. Legatti 1982-01-05 $6,190,000
4263637 Ground fault receptacle Raymond H. Legatti 1981-04-21 $7,998,000