Growing community of inventors

Lynnwood, WA, United States of America

David J Littrell

Average Co-Inventor Count = 2.25

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 = 113

David J LittrellTimothy O Armstrong (3 patents)David J LittrellJames S Birrell (1 patent)David J LittrellJanine Whan-Tong (1 patent)David J LittrellKenneth G Real (1 patent)David J LittrellCole J Dalton (1 patent)David J LittrellPaul T Dunham (1 patent)David J LittrellPeter A Pasero (1 patent)David J LittrellLawrence J Graf (1 patent)David J LittrellBrian A Arthur (1 patent)David J LittrellDavid J Littrell (6 patents)Timothy O ArmstrongTimothy O Armstrong (23 patents)James S BirrellJames S Birrell (38 patents)Janine Whan-TongJanine Whan-Tong (15 patents)Kenneth G RealKenneth G Real (10 patents)Cole J DaltonCole J Dalton (10 patents)Paul T DunhamPaul T Dunham (9 patents)Peter A PaseroPeter A Pasero (8 patents)Lawrence J GrafLawrence J Graf (7 patents)Brian A ArthurBrian A Arthur (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Precor Incorporated (6 from 190 patents)


6 patents:

1. D388847 - Cross training exerciser

2. D385258 - Weighted hand-controller for remote control of exercise apparatus

3. D347039 - Recumbent exercise cycle

4. D328625 - Climbing exerciser

5. D321734 - Low impact treadmill

6. D321229 - Full body exercise climber

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as of
12/12/2025
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