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Kelkheim, Germany

Helmut Schlaf

USPTO Granted Patents = 11

Average Co-Inventor Count = 3.5

ph-index = 5

Forward Citations = 87(Granted Patents)

Location History:

Fischbach, Taunus, DE (1977 - 1978)
Fischbach, DE (1979)
Kelkheim (Taunus), DE (1993)
Kelkheim/Ts., DE (1995)
Kelkheim, DE (1978 - 1997)

Company Filing History:

11 out of 6,662

Hoechst Aktiengesellschaft

Years Active: 1977-1997

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11 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5608030 - Process for the preparation of polyacetals (1997-03-04),

2. 5401859 - Process for the preparation of pure trioxane (1995-03-28),

3. 5266633 - Toughened polyoxymethylene and shaped articles produced therefrom (1993-11-30),

4. 5256733 - Thermoplastic polyoxymethylene molding composition of high toughness and (1993-10-26),

5. 5047471 - Toughened polyoxymethylene and shaped articles produced therefrom (1991-09-10),

6. 5039741 - Toughened polyoxymethylene and shaped articles produced therefrom (1991-08-13),

7. 4195158 - Process for the preparation of granular oxymethylene polymers having (1980-03-25),

8. 4151346 - Process for preparing oxymethylene polymers in a granular form (1979-04-24),

9. 4111912 - Process for the manufacture of coarse-granular oxymethylene polymers (1978-09-05),

10. 4082729 - Process for the preparation of oxymethylene polymers (1978-04-04),

11. 4046738 - Process for the manufacture of granular oxymethylene polymers (1977-09-06),

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