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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Charles Chen — 15 Patents

STSeagate Technology: 10 patents #581 of 4,722Top 15%
KOKomag: 3 patents #25 of 100Top 25%
ATAllnew Chemical Technology: 2 patents #2 of 13Top 20%
Overall (All Time): #307,048 of 4,157,543Top 8%
15 Patents All Time
Charles Chen has been granted 15 US patents while listed as an inventor at Seagate Technology. The first was granted in 2000 and the most recent in July 2018. Charles Chen ranks #307,048 of 4,157,543 US inventors in our database (top 7.4%). Patent records list Charles Chen in Taipei, CA, TW.

Patents per Year

Patents granted per year, 2000 to 2018Bar chart with a peak of 2 patents in 2014.peak 22000: 1 patents20002002: 1 patents2004: 1 patents20042005: 1 patents2008: 1 patents20082009: 1 patents2011: 1 patents20112012: 1 patents2014: 2 patents20142015: 2 patents2017: 1 patents20172018: 2 patents2018

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10010891 Magnetic filter Kosky Yen, Peter Wu, Michael Lee 2018-07-03
9901931 Magnetic filter Kosky Yen, Peter Wu, Michael Lee 2018-02-27
9734857 Stack including a magnetic zero layer Jai-Young Kim, Thomas P. Nolan, Kyongha Kang, Shoutao Wang, Vincent Nguyen +1 more 2017-08-15 $16,190,000
9190095 Interlayer comprising chromium-containing alloy Shoutao Wang, Weilu Xu, Chung-Hee Chang, Xiaoguang Ma, Mark W. Johnson +1 more 2015-11-17 $4,895,000
9093101 Stack including a magnetic zero layer Jai-Young Kim, Thomas P. Nolan, Kyongha Kang, Shoutao Wang, Vincent Nguyen +1 more 2015-07-28 $6,619,000
8696874 Seed layer comprising FCC structure Shoutao Wang, Weilu Xu, Chunghee Chang, Xiaoguang Ma, Mark W. Johnson +1 more 2014-04-15 $16,579,000
8685547 Magnetic recording media with enhanced writability and thermal stability Bo Bian, Shoutao Wang, Weilu Xu, Abebe Hailu, Miaogen Lu +2 more 2014-04-01 $11,329,000
8110299 Granular perpendicular media interlayer for a storage device Shoutao Wang, Weilu Xu, Chunghee Chang, Xiaoguang Ma, Mark W. Johnson +1 more 2012-02-07 $35,663,000
8025993 Recording media interlayer structure Abebe Hailu, Weilu Xu, Xiaoguang Ma, Chung-Hee Chang, Shoutao Wang 2011-09-27 $7,526,000
7504166 Magnetic recording media having five element alloy deposited using pulsed direct current sputtering Thanh Thien Ha, Abebe Hailu, Taesun Kim, Mariana Rodica Munteanu, Steve Kuo-Hsing Hwang 2009-03-17 $12,268,000
7393601 Weak antiferromagnetically coupled media with a five element magnetic alloy and a low moment stabilizing layer Shoutao Wang, Alan Huang 2008-07-01 $22,937,000
6878460 Thin-film magnetic recording media with dual intermediate layer structure for increased coercivity Abebe Hailu, Taesun Kim 2005-04-12 $10,668,000
6730420 Magnetic thin film recording media having extremely low noise and high thermal stability Gerardo A. Bertero, Tu Chen, Wei Cao 2004-05-04 $5,378,000
6500567 Ultra-thin nucleation layer for magnetic thin film media and the method for manufacturing the same Gerardo A. Bertero, Tu Chen, Tsutomu Yamashita, Makoto Imakawa, Michinobu Suekane 2002-12-31
6150015 Ultra-thin nucleation layer for magnetic thin film media and the method for manufacturing the same Gerardo A. Bertero, Tu Chen, Tsutomu Yamashita, Makoto Imakawa, Michinobu Suekane 2000-11-21 $1,419,000