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USPTO Patent Rankings Data through Sept 30, 2025
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Top Inventors 1989

Ranked by patent count

Showing 9,251–9,300 of 140,708 inventors

Rank Name Patents Location Company
#9251 Kazuhiro Sakashita 3 Tokyo, JP Mitsubishi Electric
#9252 Kamil Prochazka 3 Windisch, CH Asea Brown Boveri, S.A.
#9253 Karl-Erwin Piejko 3 Cologne, MA Bayer Healthcare
#9254 Karl Peitsmeier 3 Bad Liebenzell, DE Daimler-Benz Ag
#9255 Kazuhiko Ozeki 3 Hachioji, JP Olympus Optical Co.
#9256 Kazuhiko Onuki 3 Tokyo, JP Canon
#9257 Katsuyasu Ono 3 Yokohama, JP Nsk
#9258 Kazuya Okabe 3 Kyoto, JP Gs Yuasa International
#9259 Kazuhiko Okabe 3 Wakayama, JP Kao
#9260 Katsubumi Ohuchi 3 Chigasaki, JP Hitachi
#9261 Kazuhisa Ohno 3 Yokohama, JP Shiseido Company, Limited
#9262 Kazunori Ohno 3 Sendai, JP Fuji Photo Optical Co.
#9263 Kazuo Ogawa 3 Osaka, JP Taiho Pharmaceutical Co.
#9264 Kazuharu Odawara 3 Yokohama, JP Kabushiki Kaisha Toshiba
#9265 Kazuo Nunokawa 3 Utsunomiya, JP Tokyo Kogaku Kikai
#9266 Kazuo Nishimura 3 Hirakata, JP Sumitomo Electric Industries
#9267 Kazuhiko Nishi 3 Tokyo, JP Ascii
#9268 Katutomo Nikaido 3 Saitama, JP Nippon Cmk
#9269 Kazuo Naruse 3 Okazaki, JP Toyota
#9270 Katushige Nakamura 3 Hachioji, JP Mitaka Kohki Co.
#9271 Kazuharu Nakamura 3 Uda, JP Toyotomi Kogyo Co.
#9272 Kazuhiko Nakamura 3 Yokohama, JP Sumitomo Electric Industries
#9273 Kazuhiro Nakajima 3 Ibaraki, JP Canon
#9274 Kaoru Nakagawa 3 Yokohama, JP Kabushiki Kaisha Toshiba
#9275 Kazuyuki Nakagawa 3 Yokohama, JP Otsuka Pharmaceutical Co.
#9276 Kazumi Naitoh 3 Yokohama, JP Showa Denko
#9277 Katsumi Nagano 3 Yokohama, JP Toshiba
#9278 Karl-Heinz Mueller 3 Rosenheim, MI Steelcase Development
#9279 Katsuei Morohashi 3 千代田町, JP Kabushiki Kaisha Toshiba
#9280 Katsushi Morimoto 3 Funabashi, JP Nissan Chemical Industries
#9281 Kazuhiko Mori 3 Tokyo, JP Toyota
#9282 Katsuhisa Miyakusu 3 Yamaguchi, JP Nisshin Steel Co.
#9283 Katsuya Miyake 3 Ageo, JP Akebono Brake Industry Co.
#9284 Kazuo Miura 3 Osaka, JP Sony
#9285 Kazuhiko Miura 3 Okazaki, JP Nippon Soken
#9286 Kazushige Matsuoka 3 Otsu, JP Omron
#9287 Katsumi Makino 3 Yokohama, JP Fujitsu Limited
#9288 Karoly Magyar 3 Budapest, HU Egyt Gyogyszervegyeszeti Gyar
#9289 Kazuyuki Maeda 3 Hikone, JP Ishihara Sangyo Kaisha
#9290 Karl Lohrberg 3 Heusenstamm, DE Metallgesellschaft Ag
#9291 Karl M. J. Lofgren 3 Long Beach, CA —
#9292 Karl Lieser 3 Wuppertal, DE Wera-Werk Hermann Werner Gmbh & Co. Kg
#9293 Karl Lautenschlager 3 Reinheim, DE Karl Lautenschlager Gmbh & Co. Kg Mobelbeschlagfabrik
#9294 Kazuo Kyuma 3 Amagasaki, JP Mitsubishi Electric
#9295 Kazutaka Kuwana 3 Tokyo, JP Aisin Seiki Kabushiki Kaisha
#9296 Katsumasa Kuroiwa 3 Koriyama, JP Nitto Boseki Co.
#9297 Kazuo Kubo 3 Tokyo, JP Mitsubishi Electric
#9298 Kazuhiro Kubo 3 Kawasaki, JP Kyowa Hakko Kogyo Co.
#9299 Katsumi Komuro 3 Toyama, JP Amp
#9300 Kazuhiro Komori 3 Kodaira, JP Hitachi