Growing community of inventors

Waynesburg, PA, United States of America

David K Walker

Average Co-Inventor Count = 4.67

ph-index = 4

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 = 57

David K Walker ↔ Stephen Douglas Galbraith (7 patents)David K Walker ↔ Kenneth J McGowan (6 patents)David K Walker ↔ Elise N Depetris (5 patents)David K Walker ↔ Evonne A Baldauff (3 patents)David K Walker ↔ Judith C Galbraith (3 patents)David K Walker ↔ Robert B Lacount (1 patent)David K Walker ↔ Elise Galbraith (1 patent)David K Walker ↔ Elise DePetris (1 patent)David K WalkerDavid K Walker (7 patents)Stephen Douglas GalbraithStephen Douglas Galbraith (19 patents)Kenneth J McGowanKenneth J McGowan (6 patents)Elise N DepetrisElise N Depetris (5 patents)Evonne A BaldauffEvonne A Baldauff (3 patents)Judith C GalbraithJudith C Galbraith (3 patents)Robert B LacountRobert B Lacount (7 patents)Elise GalbraithElise Galbraith (1 patent)Elise DePetrisElise DePetris (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Separation Design Group LLC (5 from 14 patents)

2. Separation Design Group IP Holdings, LLC (2 from 4 patents)


7 patents:

1. 11369768 - Ultra rapid cycle portable oxygen concentrator

2. 11278697 - Ultra rapid cycle portable oxygen concentrator

3. 9993765 - Portable oxygen enrichment device and method of use

4. 9492781 - Portable oxygen enrichment device and method of use

5. 9199055 - Ultra rapid cycle portable oxygen concentrator

6. 8894751 - Ultra rapid cycle portable oxygen concentrator

7. 8888902 - Portable oxygen enrichment device and method of use

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idiyas.com
as of
12/13/2025
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