Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
DL

Doohwan Lee — 37 Patents

Samsung: 25 patents #5,082 of 75,807Top 7%
NTNTT: 10 patents #481 of 4,871Top 10%
UNUnknown: 1 patents #29,356 of 83,584Top 40%
Overall (All Time): #87,608 of 4,157,543Top 3%
37 Patents All Time

Issued Patents All Time

Showing 26–37 of 37 patents

Patent #TitleCo-InventorsDate
11158581 Semiconductor package having semiconductor chip between first and second redistribution layers Joonsung Kim 2021-10-26
11139867 Antenna displacement correction method and device for OAM multiplexing communication system Hirofumi Sasaki, Hiroyuki Fukumoto, Hiroyuki Shiba 2021-10-05
11127646 Fan-out semiconductor package Joonsung Kim, Jinseon Park 2021-09-21
11121069 Semiconductor package including capping pad having crystal grain of different size Jaehoon Choi, Byungho Kim, Jooyoung Choi 2021-09-14
11043446 Semiconductor package Jungsoo Park, Kyoungmoo Harr, Jihyun Lee, Junggon Choi 2021-06-22
11018749 OAM multiplexing communication system and inter-mode interference compensation method Hirofumi Sasaki, Hiroyuki Fukumoto, Hiroyuki Shiba 2021-05-25
10873376 OAM multiplexing communication system, OAM multiplexing transmission device, OAM multiplexing receiving device, and OAM multiplexing communication method Hirofumi Sasaki, Hiroyuki Fukumoto, Hiroyuki Shiba 2020-12-22
9136893 Receiver Takana Kaho, Yo Yamaguchi, Hiroyuki Shiba, Takayuki Yamada, Kazunori Akabane +1 more 2015-09-15
8101306 Fuel cell system with fuel reforming units Soonho Kim, Hyun Chul Lee, Eun-duck Park 2012-01-24
7758984 Shift reactor, fuel cell system employing the same, and operating method of the same Soonho Kim, Hyun Chul Lee, Dong Woo Lee, Tae Sang Park 2010-07-20
6728463 Optical attenuator using multi-mode interference Sangsun Lee 2004-04-27
6690856 Optical waveguide filter using multi-mode interference Sangsun Lee 2004-02-10