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For the Inventor, By the Inventor

JP

Mitsui Petrochemical Ind. Ltd.

USPTO Granted Patents = 9

Forward Citations = 204

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28 inventors (with patents filed for the assignee):

goldMedal Alexandra Jacobs (2 out of 13 patents)

silverMedal Pier C Barbe (2 out of 12 patents)

bronzeMedal Toru Tomoshige (2 out of 13 patents)

4.  Sandro Parodi (2 out of 17 patents)

5.  Enrico Albizzati (2 out of 68 patents)

6.  Kenji Yokoyama (1 out of 60 patents)

7.  Yoichiro Isota (1 out of 7 patents)

8.  Hideyuki Kitayama (1 out of 3 patents)

9.  Youhei Suzuki (1 out of 5 patents)

10.  Wilfried Hatke (1 out of 18 patents)

11.  Frank Osan (1 out of 45 patents)

12.  Thomas Weller (1 out of 13 patents)

13.  Mikio Nakaoka (1 out of 4 patents)

14.  Michael Riedel (1 out of 13 patents)

15.  Freddy Helmer-Metzmann (1 out of 17 patents)


9 patents:

1. 6132622 - Absorbents (2000-10-17),
2. 6020444 - Process for preparing a cycloolefin copolymer (2000-02-01),
3. 6008298 - Modified cycloolefin copolymer (1999-12-28),
4. 5150922 - Electrofusion joint and hot water supply header using the same (1992-09-29),
5. 5101264 - Light-emitting or receiving device with smooth and hard encapsulant resin (1992-03-31),
6. 4966929 - Composition having damping property, damping member, process for (1990-10-30),
7. 4904628 - Components and catalysts for the polymerization of olefins (1990-02-27),
8. 4675444 - Process for producing aminophenols (1987-06-23),
9. 4522930 - Components and catalysts for the polymerization of olefins (1985-06-11),
Company Overview
Mitsui Petrochemical Industries Ltd. is a leading global manufacturer and supplier of petrochemical products. The company specializes in the production of polymers, chemicals, and plastics used in various industries such as automotive, construction, electronics, and healthcare. With a strong focus on innovation and sustainability, Mitsui Petrochemical Industries Ltd. is committed to providing high-quality products that meet the evolving needs of its customers.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

9 Patents

#121 in

#4,704 in Japan

JP
JP

Mitsui Petrochemical Ind. Ltd.

Forward Citations = 204

28 inventors:

goldMedal Alexandra Jacobs (2 out of 13 patents)

silverMedal Pier C Barbe (2 out of 12 patents)

bronzeMedal Toru Tomoshige (2 out of 13 patents)

4.  Sandro Parodi (2 out of 17 patents)

5.  Enrico Albizzati (2 out of 68 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Mitsui Petrochemical Ind. Ltd.. Retrieved from https://idiyas.com/company/mitsui-petrochemical-ind

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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