BC

Byung J. Chang

GS General Scientific: 39 patents #1 of 9Top 15%
KS Kaiser Optical Systems: 7 patents #4 of 25Top 20%
GC General Scientific Corporation/Surgitel: 6 patents #1 of 3Top 35%
EI Environmental Research Institute: 1 patents #35 of 80Top 45%
📍 Ann Arbor, MI: #84 of 6,071 inventorsTop 2%
🗺 Michigan: #717 of 86,293 inventorsTop 1%
Overall (All Time): #42,210 of 4,157,543Top 2%
57
Patents All Time

Issued Patents All Time

Showing 1–25 of 57 patents

Patent #TitleCo-InventorsDate
12386206 Ergonomic loupes with beam-redirecting prisms 2025-08-12
D1057238 LED light 2025-01-07
12140818 Multifunctional mounting assembly for wrap-around eyeglass frames 2024-11-12
12000549 Head-mounted medical/dental accessories with voice-controlled operation 2024-06-04
D1027016 Wrap-around eyeglass frames with bridge mounting structure 2024-05-14
11506365 Head-mountable illuminators with user-selectable color temperature Donghwan Kim, Taekwan Yoon 2022-11-22
11402658 Removable, adjustable wire arms for nose pads 2022-08-02
11112090 Head-mounted LED light with integrated, adjustable iris 2021-09-07
D924407 Pair of removable, adjustable wire arms for nose pads 2021-07-06
11013573 Head-mounted illuminator with capacitive proximity control 2021-05-25
D908219 Pair of removable, adjustable wire arms for nose pads 2021-01-19
D908220 Pair of removable, adjustable wire arms for nose pads 2021-01-19
10842002 Head-mounted medical/dental accessories with voice-controlled operation 2020-11-17
10066816 Medical/dental headlamp with adjustable proximity on/off sensor 2018-09-04
9494299 High-efficiency LED illuminator with improved beam quality and ventilated housing 2016-11-15
9465235 Through-the-lens (TTL) loupes with improved declination angle 2016-10-11
9383077 High-efficiency LED illuminator with improved beam quality 2016-07-05
9273836 Medical/dental headlight system with interchangeable beam-forming optics 2016-03-01
D746354 Through-the-lens loupes with improved declination angle 2015-12-29
9052455 Head-worn illuminators and magnifiers with optical rejection coatings to assist medical and dental professionals 2015-06-09
8964291 Mechanically stabilized optical mounting assembly 2015-02-24
8913318 Low profile optical mounting assembly Thomas Cummings 2014-12-16
8662709 LED illuminator with improved beam quality 2014-03-04
D682450 Head-mountable LED illuminator 2013-05-14
8120847 Through-the-lens loupe assembly with interpupillary distance adjustment 2012-02-21