Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David A. Ender — 25 Patents

3M: 22 patents #581 of 11,543Top 6%
IMImation: 3 patents #110 of 622Top 20%
New Richmond, WI: #10 of 231 inventorsTop 5%
Wisconsin: #1,371 of 40,088 inventorsTop 4%
Overall (All Time): #158,593 of 4,157,543Top 4%
25 Patents All Time
David A. Ender has been granted 25 US patents while listed as an inventor at 3M. The first was granted in 1997 and the most recent in November 2025. David A. Ender ranks #158,593 of 4,157,543 US inventors in our database (top 3.8%). Patent records list David A. Ender in New Richmond, WI, US.

Patents per Year

Patents granted per year, 1997 to 2019Bar chart with a peak of 4 patents in 2016.peak 41997: 1 patents19971998: 1 patents1999: 2 patents19992000: 1 patents2006: 1 patents20062007: 1 patents2011: 2 patents20112012: 1 patents2013: 1 patents20132014: 1 patents2015: 3 patents20152016: 4 patents2017: 3 patents20172018: 1 patents2019: 1 patents2019

Issued Patents All Time

Showing 1–25 of 25 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12468138 Multiphoton imaging methods in a scattering and/or absorbing medium, and articles Alexander J. Huffman, Brian J. Gates, Jeremy K. Larsen, Gary Hughes, James D. Hansen 2025-11-11
10509157 Lightguides with pixelated image Tao Liu, Brent A. Hedding, David C. Mercord, Brian W. Ostlie 2019-12-17 $53,332,000
9989691 Lightguide and light source incorporating same 2018-06-05 $72,602,000
9823402 Illumination articles Bing Hao, Michael E. Griffin, Kevin W. Anderson, Gina M. Buccellato, Barry S. Carpenter 2017-11-21 $25,296,000
9816679 Light assembly Stephen K. Eckhardt, Barry S. Carpenter, David J. Lundin, Mark E. Napierala, Jennifer J. Sahlin +3 more 2017-11-14 $34,017,000
9599308 Hybrid taillight article Jeremy K. Larsen, Jennifer J. Sahlin, Michael E. Griffin, Karl A. Vick, Bing Hao +1 more 2017-03-21 $25,600,000
9429691 Light guides having enhanced light extraction Tzu-Chen Lee, Guoping Mao, Jun-Ying Zhang, Jaime B. Willoughby 2016-08-30 $44,218,000
9423297 Optical device with optical element and sensor for sampling light Michael E. Griffin 2016-08-23 $30,354,000
9329326 Process for making light guides with extraction structures and light guides produced thereby Charles A. Marttila, Charles D. Hoyle, Jaime B. Willoughby, Robert J. DeVoe 2016-05-03 $36,064,000
9261643 Hollow lightguide having multiple reflectors 2016-02-16 $21,502,000
9200763 Flexible lighting assembly Scott M. Schnobrich, Bing Hao 2015-12-01 $20,880,000
9200775 Light assembly Stephen K. Eckhardt, Barry S. Carpenter, David J. Lundin, Mark E. Napierala, Jennifer J. Sahlin +3 more 2015-12-01 $20,880,000
9151460 Light assembly Timothy V. Stagg, Mark E. Napierala, Barry S. Carpenter 2015-10-06 $31,748,000
8909009 Light guides having enhanced light extraction Tzu-Chen Lee, Guoping Mao, Jun-Ying Zhang, Jaime B. Willoughby 2014-12-09 $27,835,000
8545037 Lightguides having light extraction structures providing regional control of light output 2013-10-01 $14,680,000
8322874 Lightguides having light extraction structures providing regional control of light output 2012-12-04 $9,519,000
7941013 Process for making light guides with extraction structures and light guides produced thereby Charles A. Marttila, Charles D. Hoyle, Jaime B. Willoughby, Robert J. DeVoe 2011-05-10 $13,900,000
7936956 Process for making light guides with extraction structures and light guides produced thereby Charles A. Marttila, Charles D. Hoyle, Jaime B. Willoughby, Robert J. DeVoe 2011-05-03 $41,457,000
7211679 Perfluoroether acyl oligothiophene compounds Christopher P. Gerlach, Dennis E. Vogel 2007-05-01 $60,340,000
7151276 Semiconductors containing perfluoroether acyl oligothiophene compounds Christopher P. Gerlach, Dennis E. Vogel 2006-12-19 $33,118,000
6052135 Combination erase bar and belt position detector system for use with an electrophotographic imaging system Robert E. Brenner, Harold D. Kracht, Mary Poppendieck 2000-04-18 $8,737,000
5905519 System for registration of color separation images on a photoconductor belt Robert E. Brenner, Riyad Moe 1999-05-18 $9,060,000
5896158 System for registration of a photoconductor belt in an electrophotographic imaging system Robert E. Brenner 1999-04-20 $1,840,000
5756246 Bi-layer barrier for photoreceptors Edward J. Woo 1998-05-26 $9,818,000
5606398 Reduction of residual potential and ghosting in a photoconductor 1997-02-25 $34,448,000