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

Changbao Ma — 19 Patents

3M: 13 patents #1,199 of 11,543Top 15%
CTCalient Technologies: 2 patents #7 of 24Top 30%
GUGeorgetown University: 1 patents #236 of 501Top 50%
University of California: 1 patents #8,022 of 18,278Top 45%
Austin, TX: #1,717 of 18,064 inventorsTop 10%
Texas: #7,372 of 125,132 inventorsTop 6%
Overall (All Time): #229,345 of 4,157,543Top 6%
19 Patents All Time
Changbao Ma has been granted 19 US patents while listed as an inventor at 3M. The first was granted in 2014 and the most recent in November 2025. Changbao Ma ranks #229,345 of 4,157,543 US inventors in our database (top 5.5%). Patent records list Changbao Ma in Austin, TX, US.

Patents per Year

Patents granted per year, 2014 to 2025Bar chart with a peak of 7 patents in 2024.peak 72014: 1 patents20142015: 2 patents20152016: 1 patents20162021: 1 patents20212022: 3 patents20222023: 1 patents20232024: 7 patents20242025: 3 patents2025

Issued Patents All Time

Showing 1–19 of 19 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12481080 Method for three-dimensional velocity geological modeling with structures and velocities randomly arranged Pengfei JIANG, Yu Ren, Qichun WANG, Zhiwei Zuo, Xianyun Xu +6 more 2025-11-25
12454800 Intelligent construction control method, apparatus and system for mixing pile with split-grouting Peizhi ZHUANG, Mingpeng LIU, Jieming Zhang, Nianbu Zhang, Yujie Qian +5 more 2025-10-28
12210194 Expanded beam optical ferrules 2025-01-28
12124089 Optical connector assembly Alexander W. Barr, Daniel F. Cronch 2024-10-22 $47,106,000
12038617 Optical transceiver module Cheng Tang, Shiwen Chen 2024-07-16 $179,794,000
11977261 Optical connector assembly Alexander W. Barr, Daniel F. Cronch 2024-05-07 $49,030,000
11914196 Optical ferrule assemblies James M. Nelson, Michael A. Haase 2024-02-27 $36,225,000
11906786 Light coupling element and assembly Michael A. Haase, Bing Hao, Terry L. Smith 2024-02-20 $18,053,000
11906793 Optical connector assembly Cheng Tang, Shiwen Chen, Bing Hao, Boon K. Lee 2024-02-20 $18,053,000
11880072 Optical ferrules with waveguide inaccessible space Michael A. Haase, Terry L. Smith, Bing Hao 2024-01-23 $23,666,000
11592622 Light coupling element and assembly Michael A. Haase, Bing Hao, Terry L. Smith 2023-02-28 $56,077,000
11402586 Light coupling element and assembly Michael A. Haase, Bing Hao, Terry L. Smith 2022-08-02 $49,116,000
11307362 Optical ferrules with waveguide inaccessible space Michael A. Haase, Terry L. Smith, Bing Hao 2022-04-19 $33,817,000
11237340 Optical connectors and optical ferrules Alexander W. Barr, Daniel F. Cronch 2022-02-01 $60,235,000
10989881 Optical connectors for light-turning ferrules Boon K. Lee, Bing Hao, Stephen Paul LeBlanc 2021-04-27 $39,964,000
9366824 Optical circuit switch with integral circulators Shifu Yuan, Nan Luo 2016-06-14
9151891 Metamaterial-based optical lenses Zhaowei Liu 2015-10-06
9063288 Optical circuit switch with integral circulators Shifu Yuan, Nan Luo 2015-06-23
8768124 Direct coupling of optical slot waveguide to another optical waveguide Edward Van Keuren 2014-07-01