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F. L. Smidth & Co.

USPTO Granted Patents = 70

Forward Citations = 571

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44 inventors (with patents filed for the assignee):

Jorn Touborg (8 out of 11 patents)

Soren Bent Christiansen (6 out of 6 patents)

Hans B Knudsen (5 out of 6 patents)

4. Karl Jens Sylvest (4 out of 4 patents)

5. Ib Hansen (3 out of 3 patents)

6. Dan S Hansen (3 out of 3 patents)

7. Tage Halfdan Dano (3 out of 3 patents)

8. Helge Carl Kartman (3 out of 4 patents)

9. Rolf Dietrich Houd (3 out of 3 patents)

10. Leif Lind (2 out of 3 patents)

11. Bent Horning (2 out of 2 patents)

12. William Christian Endersen (2 out of 2 patents)

13. Niels E Hastrup (2 out of 2 patents)

14. Erik C Christensen (2 out of 2 patents)

15. Torben Enkegaard (2 out of 8 patents)

Core Competencies:

Cement Manufacturing

Electrostatic Precipitator

Rotary Kiln

Vertical Roller Mill

Thermal Treatment

Particulate Material Sorting

Gas Purification

Heat Treatment

Cement Clinker Production

Granular Material Processing

Planetary Cooler System

Combustion Technology

70 patents: Sort by Forward Citations

1. 6257877 - Kiln plant and method for manufacturing cement (2001-07-10),

2. 4659342 - Method of controlling operation of an electrostatic precipitator (1987-04-21),

3. 4613346 - Energy control for electrostatic precipitator (1986-09-23),

4. 4540085 - Device for raking a storage heap (1985-09-10),

5. 4529579 - Method for producing anhydrous alumina (1985-07-16),

6. 4511462 - Method and apparatus for sorting particulate material (1985-04-16),

7. 4503477 - Method and arrangement for protecting a thyristor switch of a pulse (1985-03-05),

8. 4485974 - Vertical roller mill and method of use thereof (1984-12-04),

9. 4445911 - Method of controlling operation of an electrostatic precipitator (1984-05-01),

10. 4435159 - Apparatus for thermally treating pulverous materials such as cement raw (1984-03-06),

11. 4420303 - Method and apparatus for thermally treating pulverulent materials (1983-12-13),

12. 4420302 - Method and apparatus for thermally treating pulverulent materials (1983-12-13),

13. 4419964 - Combustion plant (1983-12-13),

14. 4416622 - Method and plant such as a kiln plant for treating granular or pulverous (1983-11-22),

15. 4403952 - Apparatus for driving a rotary drum, such as a rotary kiln (1983-09-13),

F.L. Smidth & Co. is a global engineering company focused on providing equipment and services to the cement and minerals industries. With over 135 years of experience, F.L. Smidth offers a comprehensive range of solutions including grinding mills, crushers, pyroprocessing, material handling, and sustainable minerals processing technologies. They aim to improve productivity, reduce environmental impact, and enhance efficiency for their customers. Visit their website for more information and to explore their innovative solutions.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

70 Patents

#4 in

#52 in Denmark

#10,199 in the World

F. L. Smidth & Co.

Forward Citations = 571

44 inventors:

Jorn Touborg (8 out of 11 patents)

Soren Bent Christiansen (6 out of 6 patents)

Hans B Knudsen (5 out of 6 patents)

4. Karl Jens Sylvest (4 out of 4 patents)

5. Ib Hansen (3 out of 3 patents)

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