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Düsseldorf, Germany

Helmut V Freyhold

This inventor holds 2 USPTO granted patents. Top assignee: Henkel Ag & Company, Kgaa. Active years: 1979-1981.

USPTO Granted Patents = 2

% Patents Active = 100.0

Average Co-Inventor Count = 2.7

ph-index = 2

Forward Citations = 9(Granted Patents)

Company Filing History:

Henkel Ag & Company, Kgaa

Years Active: 1979-1981

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2 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4264564 - Process for the manufacture of high purity silicic acid (1981-04-28),

2. 4171986 - Binders based on alkali metal silicates and potassium metaborate (1979-10-23),

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