Growing community of inventors

Plattsburgh, NY, United States of America

David F Hall

Average Co-Inventor Count = 2.15

ph-index = 7

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 = 139

David F HallJohn E Prim (6 patents)David F HallRobert D Kinson (4 patents)David F HallCyrus Myers (2 patents)David F HallJohn Prim (2 patents)David F HallThomas Venne (1 patent)David F HallJonh E Prim (1 patent)David F HallBerend Doane (1 patent)David F HallHarry E Mowry (1 patent)David F HallDavid F Hall (12 patents)John E PrimJohn E Prim (8 patents)Robert D KinsonRobert D Kinson (4 patents)Cyrus MyersCyrus Myers (17 patents)John PrimJohn Prim (2 patents)Thomas VenneThomas Venne (1 patent)Jonh E PrimJonh E Prim (1 patent)Berend DoaneBerend Doane (1 patent)Harry E MowryHarry E Mowry (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Prim Hall Enterprises, Inc. (9 from 11 patents)

2. Quipp Systems, Inc. (2 from 14 patents)

3. Other (1 from 832,891 patents)


12 patents:

1. 7731167 - Methods and systems for controlling the feeding of stacked sheet material

2. 7014184 - Systems, devices, and methods for feeding sheet material to a disk separator

3. 6623000 - Apparatus and method for separating sheet material by means of a reciprocating disk separator

4. 6405152 - Precision calipering system

5. 6193229 - Signature feeder and method including a variable speed separator disk

6. 5394979 - Hopper loader

7. 5310172 - Hopper loader

8. 5282716 - Method and apparatus for stacking, aligning and compressing signatures

9. 5238240 - Method and apparatus for quick change-over from either a dual delivery

10. 5197590 - Hopper loader

11. 5138817 - Method of and system for creating a uniform log of strapped bundles

12. 5092236 - Method and apparatus for stacking, aligning and compressing signatures

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as of
12/30/2025
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