Growing community of inventors

Cumberland, OH, United States of America

David M Allgeier

Average Co-Inventor Count = 1.57

ph-index = 9

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 = 348

David M AllgeierRobert L Protheroe (3 patents)David M AllgeierJohn Fredrick Crooks (2 patents)David M AllgeierDonald L Forsythe (2 patents)David M AllgeierFloyd Jones, Jr (2 patents)David M AllgeierFrank A Leyshon (1 patent)David M AllgeierGeorge Heys, Jr (1 patent)David M AllgeierMichael A Kapp (1 patent)David M AllgeierDavid A Ellis (1 patent)David M AllgeierTom Donnelly (1 patent)David M AllgeierFloyd Jones (1 patent)David M AllgeierDavid M Allgeier (12 patents)Robert L ProtheroeRobert L Protheroe (24 patents)John Fredrick CrooksJohn Fredrick Crooks (56 patents)Donald L ForsytheDonald L Forsythe (24 patents)Floyd Jones, JrFloyd Jones, Jr (2 patents)Frank A LeyshonFrank A Leyshon (16 patents)George Heys, JrGeorge Heys, Jr (10 patents)Michael A KappMichael A Kapp (5 patents)David A EllisDavid A Ellis (1 patent)Tom DonnellyTom Donnelly (1 patent)Floyd JonesFloyd Jones (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Ncr Corporation (12 from 4,491 patents)


12 patents:

1. 7672900 - Write input transaction apparatus and method

2. 6539363 - Write input credit transaction apparatus and method with paperless merchant credit card processing

3. 5949348 - Method and apparatus for variable keyboard display

4. D348260 - Bar code scanner

5. D338452 - Combined image display and image capture unit

6. D325729 - Optical scanner or similar article

7. D317154 - Bar code scanner or similar article

8. D316707 - Bar code scanner or similar article

9. D314395 - Retail terminal or similar article

10. 4968883 - Apparatus and method for vertical mounting of an optical scanner

11. D305228 - Bar code scanner or similar article

12. 4857712 - Slip table with integrated slip guide

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as of
12/19/2025
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