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

David Long — 9 Patents

UCUS Dept of Commerce: 4 patents #62 of 1,030Top 7%
Eastman Kodak: 2 patents #3,607 of 8,114Top 45%
Bethesda, MD: #243 of 2,269 inventorsTop 15%
Maryland: #3,598 of 35,612 inventorsTop 15%
Overall (All Time): #535,341 of 4,157,543Top 15%
9 Patents All Time
David Long has been granted 9 US patents while listed as an inventor at US Dept of Commerce. The first was granted in 2007 and the most recent in August 2025. David Long ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list David Long in Bethesda, MD, US.

Patents per Year

Patents granted per year, 2007 to 2025Bar chart with a peak of 2 patents in 2018.peak 22007: 1 patents20072008: 1 patents20082012: 1 patents20122014: 1 patents20142016: 1 patents20162018: 2 patents20182024: 1 patents20242025: 1 patents2025

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12388532 Direct digital chirp synthesizer and generating a chirped optical frequency comb Benjamin James Reschovsky 2025-08-12
12092652 Optomechanical accelerometer and performing optomechanical accelerometry Jason John Gorman, Thomas Warren LeBrun 2024-09-17
10067050 Linear absorption spectrometer to optically determine an absolute mole fraction of radiocarbon in a sample Adam Joseph Fleisher, Joseph T. Hodges 2018-09-04
9903808 Variable-frequency optical combs, heterodyne sensor, and process for performing spectroscopy David F. Plusquellic, Kevin O. Douglass, Joseph T. Hodges, Adam Joseph Fleisher 2018-02-27
9361324 System and method to transform a complex database into a simple, faster, and equivalent database 2016-06-07
8642982 Fast switching arbitrary frequency light source for broadband spectroscopic applications David F. Plusquellic, Kevin O. Douglass, Stephen E. Maxwell, Joseph T. Hodges, Gar-Wing Truong 2014-02-04
8194108 Thermal printer Christopher T. Northern 2012-06-05
7327382 System and method for processing electronically captured images to emulate film tonescale and color Nestor M. Rodriguez, Karleen M. Cirulli, John C. Brewer 2008-02-05 $2,602,000
7274428 System and method for processing images to emulate film tonescale and color Nestor M. Rodriguez 2007-09-25 $2,258,000