Company Filing History:

3 out of 456

Elf Atochem S.a.

patents

2 out of 1,331

Nippon Shokubai Co., Ltd.

patents

1 out of 832,680

Other

patents

where one patent can have more than one assignee

Years Active: 1999-2001

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4 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6248687 - Process for presulfurizing a desulfurization catalyst used in a hydrodesulfurization unit of petroleum refinery and presulfurization promoter (2001-06-19),

2. 6153566 - Bacteriostatic compositions and use in metal working fluids (2000-11-28),

3. 6103102 - Method for improving the yield of lighter components in heat-refining (2000-08-15),

4. 5965011 - Method for reducing deposition of cokes in heat-refining process of (1999-10-12),

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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

Tetsushi Kawamura

Location History:

Company Filing History:

Years Active: 1999-2001