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West Linn, OR, United States of America

Frederick T Karl

Average Co-Inventor Count = 2.80

ph-index = 6

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 = 144

Frederick T KarlEdgar A Dallas (3 patents)Frederick T KarlWilliam Michael Dieter (2 patents)Frederick T KarlScott Hartley (2 patents)Frederick T KarlBrie G Karl (2 patents)Frederick T KarlNathaniel R Hallee (1 patent)Frederick T KarlBradley R Smith (1 patent)Frederick T KarlJason D Webb (1 patent)Frederick T KarlCynthia L Maletz (1 patent)Frederick T KarlPhillip D Howe (1 patent)Frederick T KarlFrederick T Karl (7 patents)Edgar A DallasEdgar A Dallas (32 patents)William Michael DieterWilliam Michael Dieter (53 patents)Scott HartleyScott Hartley (4 patents)Brie G KarlBrie G Karl (2 patents)Nathaniel R HalleeNathaniel R Hallee (18 patents)Bradley R SmithBradley R Smith (10 patents)Jason D WebbJason D Webb (2 patents)Cynthia L MaletzCynthia L Maletz (1 patent)Phillip D HowePhillip D Howe (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Fiskars Brands, Inc. (6 from 376 patents)

2. Hiviz Group, Inc. (1 from 2 patents)


7 patents:

1. 12460903 - Gunsight illumination system

2. 7600656 - Personal hydration system

3. 7517107 - Blood tracking system

4. D581152 - Personal hydration system reservoir

5. 7290896 - Blood tracking system

6. D538030 - Personal hydration system reservoir

7. 7048408 - Lighting head mechanism and filter

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as of
12/12/2025
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