Sipec Corporation

Calculating rank

USPTO Granted Patents = 7

% Expired Patents = 42.9

Forward Citations = 263

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7 inventors (with patents filed for the assignee):

Takahisa Nitta (5 out of 35 patents)

Nobuhiro Miki (5 out of 18 patents)

Yoshiaki Yamaguchi (2 out of 6 patents)

4. Minoru Matsuzawa (1 out of 46 patents)

5. Kenji Mori (1 out of 72 patents)

6. Tatsuro Yoshida (1 out of 1 patent)

7. Takashi Nakajima (1 out of 3 patents)

7 patents: Sort by Forward Citations

1. 7275749 - Substrate supporting apparatus (2007-10-02),

2. 7195024 - Chemical supply system (2007-03-27),

3. 7155685 - Optimizing designing apparatus of integrated circuit, optimizing designing method of integrated circuit, and storing medium in which program for carrying out optimizing designing method of integrated circuit is stored (2006-12-26),

4. 6764212 - Chemical supply system (2004-07-20),

5. 6630031 - Surface purification apparatus and surface purification method (2003-10-07),

6. 6533902 - Ultraviolet processing apparatus and ultraviolet processing method (2003-03-18),

7. 6503464 - Ultraviolet processing apparatus and ultraviolet processing method (2003-01-07),

Company Overview

Sipec Corporation is a global leader in providing advanced engineering solutions for the oil and gas industry. With over 20 years of experience, we have built a reputation for delivering high-quality products and services to our clients worldwide. Our expertise includes pipeline construction, maintenance, and inspection, as well as environmental and safety solutions. We are committed to innovation and sustainability, continuously seeking new ways to improve efficiency and reduce environmental impact.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

7 Patents

#2,290 in Tokyo

#5,462 in Japan

Tokyo, Japan