Growing community of inventors

Arvada, CO, United States of America

Robert A Null

Average Co-Inventor Count = 2.61

ph-index = 3

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 = 50

Robert A NullWendell B Colson (3 patents)Robert A NullRichard N Anderson (2 patents)Robert A NullDonald E Fraser (2 patents)Robert A NullJames M Anthony (2 patents)Robert A NullSteven R Haarer (2 patents)Robert A NullMarek Jarosinski (1 patent)Robert A NullDavid G Lynch (1 patent)Robert A NullBogdan R Ulatowski (1 patent)Robert A NullRobert A Null (4 patents)Wendell B ColsonWendell B Colson (230 patents)Richard N AndersonRichard N Anderson (200 patents)Donald E FraserDonald E Fraser (55 patents)James M AnthonyJames M Anthony (52 patents)Steven R HaarerSteven R Haarer (29 patents)Marek JarosinskiMarek Jarosinski (14 patents)David G LynchDavid G Lynch (12 patents)Bogdan R UlatowskiBogdan R Ulatowski (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hunter Douglas,inc. (4 from 828 patents)


4 patents:

1. 7168475 - Shutter-type covering for architectural openings

2. 7114545 - Magnetic catch for bottom rails of coverings for architectural openings

3. 6901988 - Shutter-like covering and hardware for architectural opening

4. 6808002 - Balanced tilt mechanism for a covering for an architectural opening

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as of
12/6/2025
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