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For the Inventor, By the Inventor

Helsingfors, Finland

Rolf E Malmstrom

USPTO Granted Patents = 10

Average Co-Inventor Count = 1.4

ph-index = 4

Forward Citations = 44(Granted Patents)


Location History:

  • Helsingfors, SE (1991)
  • Helsingfors, FI (1990 - 1993)
  • Helsinki, FI (1986 - 1996)

Company Filing History:

goldMedal7 out of 230 
 
A. Ahlstrom Corporation
 patents
silverMedal1 out of 77 
 
A. Ahlstrom Osakeyhtio
 patents
bronzeMedal1 out of 1 
 
Rm Metal Consulting Ky
 patent
4. 1 out of 12 
 
Outokumpu Engineering Contractors Oy
 patents

Years Active: 1986-1996

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10 patents (USPTO):Explore Patents
1. 5574956 - Method and apparatus for treatment sulphidic concentrates (1996-11-12),
2. 5445667 - Method for reducing material containing metal oxide in solid phase (1995-08-29),
3. 5254320 - Method for roasting sulphide ores (1993-10-19),
4. 5192487 - Apparatus for treating zinc concentrates (1993-03-09),
5. 5141720 - Catalyst bed for exothermal reactions between gases and/or other fluids (1992-08-25),
6. 5131944 - Method and apparatus for treating zinc concentrates (1992-07-21),
7. 5029556 - Method of recovering heat from hot process gases (1991-07-09),
8. 5013355 - Method and apparatus for producing matte and/or metal (1991-05-07),
9. 4976776 - Method for reduction of material containing metal oxide using a (1990-12-11),
10. 4578254 - Process for the refining of sulfidic concentrates which contain arsenic, (1986-03-25),
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