Growing community of inventors

Littleton, CO, United States of America

Robert A Null

Average Co-Inventor Count = 2.59

ph-index = 5

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 = 153

Robert A NullMichael L Goldberg (3 patents)Robert A NullLonnie C Laughlin (3 patents)Robert A NullPeter T Quinn (1 patent)Robert A NullThomas W Shilling (1 patent)Robert A NullJames P Sullivan (1 patent)Robert A NullAlan R Lee (1 patent)Robert A NullArthur W Ellsworth (1 patent)Robert A NullClair A Samhammer (1 patent)Robert A NullDavid P Mead (1 patent)Robert A NullJohn A Artmann (1 patent)Robert A NullRay Atchley (1 patent)Robert A NullRobert A Null (6 patents)Michael L GoldbergMichael L Goldberg (3 patents)Lonnie C LaughlinLonnie C Laughlin (3 patents)Peter T QuinnPeter T Quinn (13 patents)Thomas W ShillingThomas W Shilling (8 patents)James P SullivanJames P Sullivan (8 patents)Alan R LeeAlan R Lee (5 patents)Arthur W EllsworthArthur W Ellsworth (3 patents)Clair A SamhammerClair A Samhammer (2 patents)David P MeadDavid P Mead (2 patents)John A ArtmannJohn A Artmann (2 patents)Ray AtchleyRay Atchley (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Wilkerson Corporation (3 from 11 patents)

2. Samsonite Corporation (2 from 297 patents)

3. Aegis Medical Corporation (1 from 6 patents)


6 patents:

1. 5019056 - Bowel care apparatus

2. D292310 - Gas fractionator for drying compressed air

3. 4631073 - Method and apparatus for theadsorptive fractionation of gases

4. 4559065 - Twin tower gas fractionation apparatus

5. 4299313 - Mobile luggage case handle assembly

6. 3944032 - Luggage case construction

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idiyas.com
as of
12/19/2025
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