{"@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [{"@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.patentleaderboard.com/"}, {"@type": "ListItem", "position": 2, "name": "Inventors", "item": "https://www.patentleaderboard.com/inventors"}, {"@type": "ListItem", "position": 3, "name": "Da-Jun Chen", "item": "https://www.patentleaderboard.com/inventor/fl:da_ln:chen-144"}]}
Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
DC

Da-Jun Chen — 11 Patents

Motorola: 10 patents #1,192 of 14,142Top 9%
Amazon: 1 patents #10,717 of 19,158Top 60%
Overall (All Time): #435,149 of 4,157,543Top 15%
11 Patents All Time
Da-Jun Chen has been granted 11 US patents. The first was granted in 2017 and the most recent in November 2020. Da-Jun Chen ranks #435,149 of 4,157,543 US inventors in our database (top 10.5%). Patent records list Da-Jun Chen in Chengdu, WA, CN.

Patents per Year

Patents granted per year, 2017 to 2020Bar chart with a peak of 4 patents in 2018.peak 42017: 2 patents20172018: 4 patents20182019: 4 patents20192020: 1 patents2020

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10841774 Method and apparatus for fast channel deployment at an incident scene Ya-Hui Gong, Xun Fei, Wen-Hung Feng, Yi Tang, Yong Tian 2020-11-17 $17,913,000
10496888 Guardian camera in a network to improve a user's situational awareness Kang Zhao, Xun Fei, Yong Tian, Dong Zhao 2019-12-03 $9,521,000
10327127 Method, device, and system for device pairing for improved safety and security of first responders entering an incident scene area Kang Zhao, Xun Fei, Wen-Hung Feng, Ya-Hui Gong, Yong Tian +1 more 2019-06-18 $26,674,000
10178707 Systems and methods to provide wireless accessory backup communication links Yong Tian, Xun Fei, Dong Zhao, Kang Zhao 2019-01-08 $14,991,000
10169648 Method and device for inputting handwriting character Xun Fei, Wen-Hung Feng, Ya-Hui Gong 2019-01-01
10070452 Method, device, and system for multi-system priority scan Xun Fei, Yong Tian, Dong Zhao, Kang Zhao, Zu Zhou 2018-09-04 $10,415,000
9967248 System for authenticating and processing service requests Yu-Hsiang Cheng, Siddhartha Shankara Rao, Robert Dale Francis, Ruoyu Fei, Jingyu Ji +5 more 2018-05-08 $101,998,000
9961703 Methods and systems for patching direct-mode talkgroups among dual-watch mobile radios Kang Zhao, Ya-Hui Gong, Yi Tang, Yong Tian, Wu Yang +1 more 2018-05-01 $5,784,000
9913088 Apparatus and method for identifying radio locations relative to a geo-fence Xun Fei, Wen-Hung Feng, Ya-Hui Gong, Yong Tian 2018-03-06 $8,192,000
9843457 Method and systems for maintaining a proxy mapping table Xun Fei, Yong Tian, Jian Wang, Dong Zhao 2017-12-12 $4,151,000
9686657 Methods and systems for simultaneous talking in a talkgroup using a dynamic channel chain Kang Zhao, Yong Li, Yong Tian, Wu Yang 2017-06-20 $13,550,000