Growing community of inventors

West Linn, OR, United States of America

Frederick Karl

Average Co-Inventor Count = 2.74

ph-index = 15

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 663

Frederick KarlLewis A Danielson (13 patents)Frederick KarlDaniel Lee Hughes (5 patents)Frederick KarlDanny Anderson (4 patents)Frederick KarlWilliam Johnston (3 patents)Frederick KarlDrew Essig (3 patents)Frederick KarlDavid Justis (1 patent)Frederick KarlFrederick Karl (16 patents)Lewis A DanielsonLewis A Danielson (23 patents)Daniel Lee HughesDaniel Lee Hughes (14 patents)Danny AndersonDanny Anderson (7 patents)William JohnstonWilliam Johnston (23 patents)Drew EssigDrew Essig (12 patents)David JustisDavid Justis (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Crimson Trace Corporation (15 from 105 patents)

2. Alliance Sports Group, L.p. (1 from 50 patents)


16 patents:

1. D1095015 - Knife sheath

2. D696376 - Laser device

3. D694848 - Laser

4. D694847 - Laser device

5. D693898 - Laser device

6. D692518 - Laser device

7. D687120 - Laser device

8. D674862 - Illumination device

9. D674861 - Illumination device

10. D669959 - Illumination device

11. D669957 - Laser device

12. D669958 - Laser device

13. D669552 - Laser device

14. D669553 - Laser device

15. D636837 - Laser gunsight system for a firearm

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as of
1/12/2026
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