HH

Huibert W. den Hartog

HB Hoogovens Staal B.V.: 6 patents #1 of 26Top 4%
HB Hoogovens Groep B.V.: 5 patents #4 of 138Top 3%
CB Corus Staal B.V.: 2 patents #1 of 33Top 4%
CB Corus Technology B.V.: 1 patents #3 of 30Top 10%
HA Hoesch Werke Ag: 1 patents #25 of 67Top 40%
Overall (All Time): #327,613 of 4,157,543Top 8%
15
Patents All Time

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #TitleCo-InventorsDate
6533876 Process and device for producing a steel strip or sheet Marcus Cornelis Maria Cornelissen, Aldricus Maria Groot 2003-03-18
6280542 Method and apparatus for the manufacture of a steel strip Marcus Cornelis Maria Cornelissen, Aldricus Maria Groot 2001-08-28
6276437 Method and apparatus for the manufacture of formable steel 2001-08-21
6109336 Method of manufacturing a deep-drawing steel strip or sheet Cornelis Pronk 2000-08-29
6053996 Method for the manufacture of a strip of formable steel Cornelis Pronk, Marcus Cornelis Maria Cornelissen 2000-04-25
5989307 Method and apparatus for producing pig iron by smelting reduction and method of obtaining such a plant 1999-11-23
5968448 Process and apparatus for producing molten pig iron Hendrikus Koenraad Albertus Meijer 1999-10-19
5827473 Method and apparatus for producing pig iron by smelting reduction and method of obtaining such a plant 1998-10-27
5800592 Process for producing molten pig iron with melting cyclone Hendrikus Koenraad Albertus Meijer 1998-09-01
5262039 Silicon-containing iron sheet for electrical applications and methods for its manufacture Gijsbertus C. van Haastrecht 1993-11-16
5042564 Method for the manufacture of formable steel Erik B. Van Perlstein, Robert F. Gadellaa 1991-08-27
5009396 Method and apparatus for the manufacture of formable steel strip Erik B. Van Perlstein 1991-04-23
4985090 Non-ageing low-alloy hot-rolled strip-form formable steel Erik B. Van Perlstein 1991-01-15
4885041 Method for the manufacture of formable steel strip Erik B. Van Perlstein 1989-12-05
4202194 Inclined rolling stand Klaus Stann, Lutz Stolze 1980-05-13