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Arnhem, Netherlands

N. V. Kema

USPTO Granted Patents = 19

Trademarks = 1

Forward Citations = 245

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29 inventors (with patents filed for the assignee):

Jacobus Van Liere (3 out of 3 patents)

Pieter Lodder (3 out of 3 patents)

Evert Frederik Steennis (2 out of 3 patents)

4. Robert Ross (2 out of 2 patents)

5. Jan B Lefers (2 out of 2 patents)

6. Gerrit Derk Enoch (2 out of 2 patents)

7. Willem Jan Oosterkamp (1 out of 7 patents)

8. Andreas J M Primus (1 out of 1 patent)

9. Walterus M M Huijbregts (1 out of 1 patent)

10. Monique A M Beerlage (1 out of 1 patent)

11. André G L Zeijseink (1 out of 1 patent)

12. Cornelis Adrianus Antonius Van Paassen (1 out of 1 patent)

13. Dirk Marinus Van Aartrijk (1 out of 1 patent)

14. Wijnand Reijer Rutgers (1 out of 1 patent)

15. Yan Hong Fu (1 out of 1 patent)

19 patents: Sort by Forward Citations

1. 6688108 - Power generating system comprising a combustion unit that includes an explosion atomizing unit for combusting a liquid fuel (2004-02-10),

2. 6568251 - Corrosion probe (2003-05-27),

3. 6490862 - Preparation of water from flue gases (2002-12-10),

4. 6453659 - Device for compressing a gaseous medium and systems comprising such device (2002-09-24),

5. 6366095 - Method and device for detecting and locating irregularities in a dielectric (2002-04-02),

6. 6342130 - Method of treating a base material for obtaining specific properties (2002-01-29),

7. 6323655 - Method and device for detecting partial discharges (2001-11-27),

8. 6301841 - Method for erecting a structure for an emergency power line, apparatus and kit of parts therefor (2001-10-16),

9. 6263661 - System for power generation (2001-07-24),

10. 5858203 - Method and device for treating a contaminated slurry (1999-01-12),

11. 5854556 - Measurement system for partial discharges on dielectrics in coaxial (1998-12-29),

12. 5830357 - Process for cleaning a waste water stream or the like (1998-11-03),

13. 5767684 - Method and apparatus for measuring partial discharges in cables (1998-06-16),

14. 5546010 - Method for measuring a resistance value in an electrical apparatus (1996-08-13),

15. 5453254 - Apparatus for effecting chemical and/or physical reactions (1995-09-26),

N. V. Kema is a leading international consulting and testing company for the energy industry. They provide a wide range of services to help companies improve their energy efficiency and reliability. With over 90 years of experience, Kema has established itself as a trusted partner for companies looking to optimize their energy operations.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 13 2026

19 Patents

#8 in Arnhem

#372 in Netherlands

#31,772 in the World

Arnhem, Netherlands

N. V. Kema

Forward Citations = 245

29 inventors:

Jacobus Van Liere (3 out of 3 patents)

Pieter Lodder (3 out of 3 patents)

Evert Frederik Steennis (2 out of 3 patents)

4. Robert Ross (2 out of 2 patents)

5. Jan B Lefers (2 out of 2 patents)

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