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For the Inventor, By the Inventor

Numazu, Japan

Teiji Yamada

This inventor holds 5 USPTO granted patents, plus 1 CIPO patent. Top assignees: N.e. Chemcat Corporation, Engelhard Corporation. Active years: 1990-1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Teiji Yamada. Retrieved from https://idiyas.com/inventor/teiji-yamada

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

Calculating rank
USPTO Granted Patents = 5

% Patents Active = 100.0


Average Co-Inventor Count = 2.7

ph-index = 5

Forward Citations = 78(Granted Patents)


Location History:

  • Shizuoka, JP (1990)
  • Numazu, JP (1991 - 1993)

Company Filing History:

goldMedal3 out of 90 
 
N.e. Chemcat Corporation
 patents
silverMedal2 out of 623 
 
Engelhard Corporation
 patents

Years Active: 1990-1993

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5 patents (USPTO):Explore Patents
1. 5202300 - Catalyst for purification of exhaust gas (1993-04-13),
2. 5200384 - Exhaust gas-purifying catalyst excellent in heat resistance and process (1993-04-06),
3. 5147842 - Exhaust gas-purifying catalyst and process for preparation thereof (1992-09-15),
4. 5039650 - Exhaust gas purification catalyst for suppressing hydrogen sulfide (1991-08-13),
5. 4965243 - Process for producing a catalyst for purifying exhaust gases from (1990-10-23),
Profile summary based on public USPTO records.
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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