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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Tomoko Maeda — 4 Patents in 2018

APApi: 3 patents #1 of 16Top 7%
MCMitsubishi Chemical: 1 patents #51 of 304Top 20%
Yokohama, JP: #581 of 6,993 inventorsTop 9%
Overall (2018): #34,183 of 503,207Top 7%
4 Patents 2018

Issued Patents 2018

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
10155846 Polycarbonate resin Michiaki Fuji, Kiminori Kawakami, Kazuki FUKUMOTO, Hisatoshi Uehara, Kenichi Satake 2018-12-18
10071958 Method for producing alpha-substituted cysteine or salt thereof or synthetic intermediate of alpha-substituted cysteine Yuuki Asuma, Hisatoshi Uehara, Yasuyo Saito, Ryoma Miyake, Hiroshi Kawabata 2018-09-11
9988351 Method for producing 5-hydroxypiperidine-2-carboxylic acid Jun Takehara, Masato MURAI, Takashi Ohtani, Tsugihiko Hidaka 2018-06-05
9981984 Method for producing cis-5-hydroxy-2-piperidinecarboxylic acid derivative, and method for purifying cis-5-hydroxy-2-piperidinecarboxylic acid Hisatoshi Uehara, Yasuyo Saito, Masato MURAI 2018-05-29