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USPTO Patent Rankings Data through Dec 31, 2025
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David C. Walther — 17 Patents

NENelumbo: 12 patents #1 of 6Top 20%
University of California: 1 patents #8,022 of 18,278Top 45%
Hayward, CA: #97 of 1,120 inventorsTop 9%
California: #35,467 of 386,348 inventorsTop 10%
Overall (All Time): #263,971 of 4,157,543Top 7%
17 Patents All Time
David C. Walther has been granted 17 US patents while listed as an inventor at Nelumbo. The first was granted in 2011 and the most recent in December 2025. David C. Walther ranks #263,971 of 4,157,543 US inventors in our database (top 6.3%). Patent records list David C. Walther in Hayward, CA, US.

Patents per Year

Patents granted per year, 2011 to 2025Bar chart with a peak of 4 patents in 2022.peak 42011: 1 patents20112013: 2 patents20132015: 1 patents20152021: 1 patents20212022: 4 patents20222023: 2 patents20232024: 2 patents20242025: 4 patents2025

Issued Patents All Time

Showing 1–17 of 17 patents

Patent #TitleCo-InventorsDate
12492839 Temperature and relative humidity controller Lance R. Brockway, James Ma 2025-12-09
12422202 Nanostructure coating materials and methods of use thereof Lance R. Brockway 2025-09-23
12311641 Coincident surface modifications and methods of preparation thereof Lance R. Brockway 2025-05-27
12263666 Assemblies of functionalized textile materials and methods of use thereof Nicholas Joseph Montes, Cody D. Oliver, Lance R. Brockway 2025-04-01
12145350 Functionalized textile compositions and articles Lance R. Brockway, Josh Rafshoon 2024-11-19
11879657 Temperature and relative humidity controller Lance R. Brockway, James Ma 2024-01-23
11808531 Droplet ejecting coatings Lance R. Brockway 2023-11-07
11592246 Nanostructure coating materials and methods of use thereof Lance R. Brockway 2023-02-28
11473807 Temperature and relative humidity controller Lance R. Brockway, James Ma 2022-10-18
11441852 Droplet ejecting coatings Lance R. Brockway 2022-09-13
11293704 Droplet ejecting coatings Lance R. Brockway 2022-04-05
11255616 Droplet ejecting coatings Lance R. Brockway 2022-02-22
11041665 Droplet-field heat transfer surfaces and systems thereof Lance R. Brockway 2021-06-22
9074173 Integrated system and process for bioproduct production Hendrik J. Meerman, Stacy M. Burns-Guydish, Richard W. Wilson, Eamon T. Hogg, Gregory W. Luli +1 more 2015-07-07
8497105 Integrated system and process for bioproduct production Hendrik J. Meerman, Stacy M. Burns-Guydish, Richard W. Wilson, Eamon T. Hogg, Gregory W. Luli +1 more 2013-07-30
8460906 Immobilized product tolerant microorganisms Pamela R. Contag, Stacy M. Burns-Guydish, Hendrikus J. Meerman, John Chu Chen, Alvin W. Nienow +1 more 2013-06-11
8026485 Chitin-based cantilever bimorphs and readout devices Michael Mueller, Albert P. Pisano, Robert Azevedo, David R. Myers, Matthew Wasilik 2011-09-27

Frequent Collaborators

Lance R. Brockway13 shared
James Ma3 shared
Stacy M. Burns-Guydish3 shared
Richard W. Wilson2 shared
Gregory W. Luli2 shared
Hendrik J. Meerman2 shared

Nearby-Ranked Inventors

Michael John Caelwaerts17
Umut Zalluhoglu17
Austino Longo17
Till Bredbeck17
Mircea Grigore17
Achim Klein17
Manesh Nadupparambil Sekharan17
Yoshiaki Nishikawa17
Evan Sparks17