Company Filing History:

4 out of 929

Sumitomo Metal Industries, Inc.

patents

1 out of 1

Sumitomo Metal Chemical Co., Ltd.

patent

1 out of 6,893

Sumitomo Chemical Company, Limited

patents

where one patent can have more than one assignee

Years Active: 1986-2000

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4 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6143422 - Surface-treated steel sheet having improved corrosion resistance after (2000-11-07),

2. 5932359 - Surface-treated steel sheet for fuel tanks (1999-08-03),

3. 4883717 - Vibration-damping material (1989-11-28),

4. 4594292 - Metal-resin-metal sandwich laminates suitable for use in press forming (1986-06-10),

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Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.

For the Inventor, By the Inventor

Hiroyuki Nagai

Location History:

Company Filing History:

Years Active: 1986-2000