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For the Inventor, By the Inventor

Engelskirchen, Germany

Siegfried Gruhl

USPTO Granted Patents = 4

Average Co-Inventor Count = 4.1

ph-index = 3

Forward Citations = 16(Granted Patents)


Location History:

  • Leichlingen, DE (1976)
  • Engelskirchen-Ruenderoth, DE (1990)
  • Engelskirchen, DE (1991 - 1992)

Company Filing History:

goldMedal4 out of 12,157 
 
Bayer Aktiengesellschaft
 patents

Years Active: 1976-1992

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4 patents (USPTO):Explore Patents
1. 5173466 - Catalyst for the reduction of nitrogen oxides from waste gases and a (1992-12-22),
2. 4992404 - Carbon-based catalyst useful in gas-solid reactions (1991-02-12),
3. 4910005 - Process for the reduction of nitrogen oxides from exhaust gases (1990-03-20),
4. 3950183 - Production of annealed pigments (1976-04-13),
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