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Boothwyn, PA, United States of America

Nielsen-Kellerman Co.

USPTO Granted Patents = 16

Trademarks = 42

Forward Citations = 138

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13 inventors (with patents filed for the assignee):

Garet L Itz (4 out of 12 patents)

Weston D Petersen (4 out of 11 patents)

Alex J Sitzman (4 out of 10 patents)

4. Thomas Jason Dooley (4 out of 25 patents)

5. Mathieu Zastawny (4 out of 14 patents)

6. Richard Kellerman (3 out of 5 patents)

7. Alix Anita James (3 out of 3 patents)

8. Michael T Naughton (3 out of 3 patents)

9. Yohann L Rigogne (3 out of 3 patents)

10. Ivan Dorflinger (2 out of 3 patents)

11. Paul H Nielsen (2 out of 6 patents)

12. John H McGinn (1 out of 1 patent)

13. Glenn Alan Marra (1 out of 1 patent)

16 patents: Sort by Forward Citations

1. 11982517 - Apparatus and method for indicating whether a target has been impacted by a projectile (2024-05-14),

2. 11320447 - Apparatus for measuring velocities of projectiles (2022-05-03),

3. 11280593 - Apparatus and method for indicating whether a target has been impacted by a projectile (2022-03-22),

4. 11137232 - Apparatus and method for indicating whether a target has been impacted by a projectile (2021-10-05),

5. 9014389 - Megaphone (2015-04-21),

6. D720329 - Megaphone (2014-12-30),

7. D718157 - Electronic data device (2014-11-25),

8. D716754 - Megaphone (2014-11-04),

9. D714665 - Electronic data device (2014-10-07),

10. D714664 - Electronic data device (2014-10-07),

11. D642155 - Megaphone (2011-07-26),

12. 7249493 - Method and apparatus for measuring relative humidity of a mixture (2007-07-31),

13. 6257074 - Vane anemometer with thermally isolated sensors (2001-07-10),

14. 5783753 - Vane anemometer having a modular impeller assembly (1998-07-21),

15. 5357794 - Faraday effect small boat speed transducer and waterproof connection for (1994-10-25),

Nielsen-Kellerman Co. is a leading manufacturer of high-performance sports and weather instruments. Founded in 1978, they specialize in producing waterproof speedometers, wind meters, and race displays for competitive sailors. The company also offers a range of weather instruments for outdoor enthusiasts and professionals. With a strong commitment to quality and innovation, Nielsen-Kellerman Co. continues to provide top-of-the-line products for athletes and adventurers around the world.

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

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

16 Patents

#1 in Boothwyn, PA

#721 in Pennsylvania

#19,898 in US

#37,766 in the World

Boothwyn, PA, United States of America

Nielsen-Kellerman Co.

Forward Citations = 138

13 inventors:

Garet L Itz (4 out of 12 patents)

Weston D Petersen (4 out of 11 patents)

Alex J Sitzman (4 out of 10 patents)

4. Thomas Jason Dooley (4 out of 25 patents)

5. Mathieu Zastawny (4 out of 14 patents)

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