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

Christopher David Barnhill — 29 Patents

GE: 29 patents #752 of 36,430Top 3%
UIUnison Industries: 3 patents #47 of 192Top 25%
Cincinnati, OH: #249 of 8,043 inventorsTop 4%
Ohio: #1,898 of 73,341 inventorsTop 3%
Overall (All Time): #127,851 of 4,157,543Top 4%
29 Patents All Time
Christopher David Barnhill has been granted 29 US patents while listed as an inventor at GE. The first was granted in 2021 and the most recent in October 2025. Christopher David Barnhill ranks #127,851 of 4,157,543 US inventors in our database (top 3.1%). Patent records list Christopher David Barnhill in Cincinnati, OH, US.

Patents per Year

Patents granted per year, 2021 to 2025Bar chart with a peak of 9 patents in 2025.peak 92021: 2 patents20212022: 4 patents20222023: 6 patents20232024: 8 patents20242025: 9 patents2025

Issued Patents All Time

Showing 1–25 of 29 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12447682 Reclamation system for additive manufacturing Trent William Muhlenkamp, Meredith Elissa Dubelman, Carlos H. Bonilla, Brian Raymond Thompson, John Sterle 2025-10-21
12434436 Accumalator assembly for additive manufacturing Mary Kathryn Thompson, Meredith Elissa Dubelman, Xiawan Yang, Trent William Muhlenkamp, William Joseph Steele 2025-10-07
12409604 Systems and methods for additive manufacturing Xi Yang, William Joseph Steele, Meredith Elissa Dubelman, Trent William Muhlenkamp, Mary Kathryn Thompson 2025-09-09
12403654 Systems and methods for additive manufacturing Xi Yang, Trent William Muhlenkamp, Joseph Edward Hampshire 2025-09-02
12390986 Resin management system for additive manufacturing Meredith Elissa Dubelman, Trent William Muhlenkamp, Kevin R. Dickson, Brian Thomas Thompson 2025-08-19
12370741 Material deposition assembly for additive manufacturing Meredith Elissa Dubelman, William Joseph Steele, Xi Yang 2025-07-29
12296535 Attachment structure for additive manufacturing Zhen Liu, Trent William Muhlenkamp 2025-05-13
12285908 Foil interaction device for additive manufacturing Meredith Elissa Dubelman, Xi Yang, Lawrence William Nurre, Trent William Muhlenkamp, Mary Kathryn Thompson 2025-04-29
12226960 Method and apparatus for layer thickness control in additive manufacturing Meredith Elissa Dubelman, Mary Kathryn Thompson, Xi Yang 2025-02-18
12172379 Cleaning system for additive manufacturing James Patrick Lewis, Johnny Eric DeLeon, II, Brian Paul Sechrist, Mary Kathryn Thompson, Meredith Elissa Dubelman 2024-12-24 $53,003,000
12121956 Casting assembly Daniel Endecott Osgood, Evin Nathaniel Barber, Brian Peterson, Xi Yang, Brian David Przeslawski +1 more 2024-10-22 $51,154,000
12042848 Casting assembly Daniel Endecott Osgood, Evin Nathaniel Barber, Brian Peterson, Xi Yang, Brian David Przeslawski 2024-07-23 $49,350,000
11958250 Reclamation system for additive manufacturing Meredith Elissa Dubelman, Xi Yang, William Joseph Steele, Brian Thomas Thompson 2024-04-16 $50,052,000
11958249 Reclamation system for additive manufacturing Trent William Muhlenkamp, Meredith Elissa Dubelman, Carlos H. Bonilla, Brian Thomas Thompson, John Sterle 2024-04-16 $50,052,000
11951679 Additive manufacturing system Mary Kathryn Thompson, Xi Yang, Meredith Elissa Dubelman, William Joseph Steele, Trent William Muhlenkamp +1 more 2024-04-09 $48,477,000
11945157 Multi-material additive manufacturing apparatus and method Meredith Elissa Dubelman, Xi Yang, Mary Kathryn Thompson 2024-04-02 $46,648,000
11865780 Accumalator assembly for additive manufacturing Mary Kathryn Thompson, Meredith Elissa Dubelman, Xi Yang, Trent William Muhlenkamp, William Joseph Steele 2024-01-09 $34,866,000
11826950 Resin management system for additive manufacturing Meredith Elissa Dubelman, Trent William Muhlenkamp, Kevin R. Dickson, Brian Thomas Thompson 2023-11-28 $30,242,000
11813799 Control systems and methods for additive manufacturing Robert Edgar Estes, William Joseph Steele, Trent William Muhlenkamp, Zhen Liu, John Sterle +1 more 2023-11-14 $25,458,000
11794412 Method and apparatus for layer thickness control in additive manufacturing Meredith Elissa Dubelman, Mary Kathryn Thompson, Xi Yang 2023-10-24 $26,014,000
11731367 Drive system for additive manufacturing Zhen Liu, Trent William Muhlenkamp 2023-08-22 $23,714,000
11707883 Foil interaction device for additive manufacturing Meredith Elissa Dubelman, Xi Yang, Lawrence William Nurre, Trent William Muhlenkamp, Mary Kathryn Thompson 2023-07-25 $60,664,000
11707888 Method and apparatus for additive manufacturing with shared components Meredith Elissa Dubelman, Mary Kathryn Thompson, Xi Yang 2023-07-25 $60,664,000
11498267 Multi-material additive manufacturing apparatus and method Meredith Elissa Dubelman, Xi Yang, Mary Kathryn Thompson 2022-11-15 $24,298,000
11498283 Method and apparatus for build thickness control in additive manufacturing Meredith Elissa Dubelman, Mary Kathryn Thompson, Xi Yang 2022-11-15 $24,298,000