Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Logan L. Simpson — 20 Patents

IBM: 12 patents #9,258 of 70,183Top 15%
Canon: 7 patents #7,879 of 19,416Top 45%
MIMolecular Imprints: 1 patents #71 of 97Top 75%
Coupland, TX: #3 of 8 inventorsTop 40%
Texas: #6,926 of 125,132 inventorsTop 6%
Overall (All Time): #214,803 of 4,157,543Top 6%
20 Patents All Time
Logan L. Simpson has been granted 20 US patents while listed as an inventor at IBM. The first was granted in 1991 and the most recent in February 2025. Logan L. Simpson ranks #214,803 of 4,157,543 US inventors in our database (top 5.2%). Patent records list Logan L. Simpson in Coupland, TX, US.

Patents per Year

Patents granted per year, 1991 to 2025Bar chart with a peak of 4 patents in 1991.peak 41991: 4 patents19911992: 1 patents1993: 2 patents19931994: 1 patents1995: 1 patents19951996: 1 patents2000: 1 patents20002001: 1 patents2013: 1 patents20132021: 2 patents2022: 1 patents20222023: 2 patents2024: 1 patents20242025: 1 patents2025

Issued Patents All Time

Showing 1–20 of 20 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12235587 Method and system for determining initial contact control values for shaping partial fields and method and system for shaping partial fields Daniel Ironside 2025-02-25
11927883 Method and apparatus to reduce variation of physical attribute of droplets using performance characteristic of dispensers Steven Wayne Burns, Matthew C. Traub, Adam Shackleton, Whitney Longsine, Brent Snyder 2024-03-12
11762295 Fluid droplet methodology and apparatus for imprint lithography Amir Tavakkoli Kermani Ghariehali, Edward Brian Fletcher, James W. Irving 2023-09-19
11614693 Method of determining the initial contact point for partial fields and method of shaping a surface Xiaoming Lu, Mario Johannes Meissl 2023-03-28
11215921 Residual layer thickness compensation in nano-fabrication by modified drop pattern Ecron D. Thompson, Craig William Cone, Wei Zhang, James W. Irving 2022-01-04 $77,000
11209730 Methods of generating drop patterns, systems for shaping films with the drop pattern, and methods of manufacturing an article with the drop pattern Steven Wayne Burns, Jason Battin, Niyaz Khusnatdinov, Christopher Ellis Jones, Craig William Cone +2 more 2021-12-28 $48,000
11040366 Dispenser shield with adjustable aperture to improve drop placement and residual layer thickness Seth J. Bamesberger, John Williamson 2021-06-22 $66,000
8480933 Fluid dispense device calibration Van Nguyen Truskett, Stephen C. Johnson, Niyaz Khusnatdinov 2013-07-09
6194785 Method for circuitizing through-holes by photo-activated seeding Cindy Reidsema Simpson, Joseph E. Varsik 2001-02-27 $24,775,000
6087258 Method for circuitizing through-holes by photo-activated seeding Cindy Reidsema Simpson, Joseph E. Varsik 2000-07-11 $21,738,000
5498765 Positive photoresist composition containing photoacid generator and use thereof Burton J. Carpenter, Michael G. McMaster, Joseph LaTorre 1996-03-12 $19,192,000
5439766 Composition for photo imaging Richard A. Day, Donald Herman Glatzel, John R. Mertz, Joel L. Roth, David J. Russell 1995-08-08 $12,123,000
5374500 Positive photoresist composition containing photoacid generator and use thereof Burton J. Carpenter, Michael G. McMaster, Joseph LaTorre 1994-12-20 $10,417,000
5272042 Positive photoresist system for near-UV to visible imaging Robert David Allen, William R. Brunsvold, Burton J. Carpenter, William D. Hinsberg, Joseph LaTorre +5 more 1993-12-21 $18,906,000
5266444 Method and composition for obtaining image reversal in epoxy formulations based upon photoinhibition Burton J. Carpenter, Joseph LaTorre, Michael G. McMaster 1993-11-30 $8,625,000
5102772 Photocurable epoxy composition with sulfonium salt photoinitiator Raymond W. Angelo, Jeffrey D. Gelorme, Joseph Kuczynski, William H. Lawrence, Socrates Pappas 1992-04-07 $19,683,000
5071730 Liquid apply, aqueous processable photoresist compositions Robert David Allen, William D. Hinsberg, Gregory Michael Wallraff 1991-12-10 $18,194,000
5055439 Photoacid generating composition and sensitizer therefor Robert David Allen, William D. Hinsberg, Robert J. Twieg, Gregory Michael Wallraff, Carlton G. Willson 1991-10-08 $19,888,000
5047568 Sulfonium salts and use and preparation thereof Raymond W. Angelo, Jeffrey D. Gelorme, Joseph Kuczynski, William H. Lawrence, Socrates Pappas 1991-09-10 $16,462,000
5045431 Dry film, aqueous processable photoresist compositions Robert David Allen, Gregory Michael Wallraff, William D. Hinsberg 1991-09-03 $13,319,000