Growing community of inventors

Machesney Park, IL, United States of America

Robert Louis Northrup, Jr

Average Co-Inventor Count = 2.62

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 = 147

Robert Louis Northrup, JrThomas E Valiulis (6 patents)Robert Louis Northrup, JrPatrick J Barkdoll (5 patents)Robert Louis Northrup, JrRichard A Bennett (1 patent)Robert Louis Northrup, JrRobert Louis Northrup, Jr (7 patents)Thomas E ValiulisThomas E Valiulis (44 patents)Patrick J BarkdollPatrick J Barkdoll (38 patents)Richard A BennettRichard A Bennett (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Southern Imperial, Inc. (7 from 148 patents)


7 patents:

1. 8534469 - Inventory display lock

2. 8286565 - Security lock box

3. 8162158 - Slide through shelf

4. 8002441 - Adjustable arm gondola lighting system

5. D587947 - Pegboard receptacle

6. D582190 - Slatwall receptacle

7. 7278617 - Display hook and assembly having reduced drag

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as of
12/18/2025
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