Growing community of inventors

Adair, IA, United States of America

Christopher E Schafer

Average Co-Inventor Count = 1.32

ph-index = 11

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 = 263

Christopher E SchaferRyan B Gruhn (3 patents)Christopher E SchaferPhilip R Littler (2 patents)Christopher E SchaferCharlie J Schafer (1 patent)Christopher E SchaferMichael E Irlmeier (1 patent)Christopher E SchaferKurt L McCuen (1 patent)Christopher E SchaferCharles J Schafer (1 patent)Christopher E SchaferRyan Littler (1 patent)Christopher E SchaferJames F Popelka (1 patent)Christopher E SchaferRodney M Ramsey (1 patent)Christopher E SchaferGlenn Miller (1 patent)Christopher E SchaferSteve Irlmeier, Deceased (1 patent)Christopher E SchaferTim Caltrider (1 patent)Christopher E SchaferWilliam P Schafer (1 patent)Christopher E SchaferDennis J Deyen (1 patent)Christopher E SchaferBetty L Schafer (1 patent)Christopher E SchaferChristopher E Schafer (18 patents)Ryan B GruhnRyan B Gruhn (5 patents)Philip R LittlerPhilip R Littler (2 patents)Charlie J SchaferCharlie J Schafer (7 patents)Michael E IrlmeierMichael E Irlmeier (2 patents)Kurt L McCuenKurt L McCuen (2 patents)Charles J SchaferCharles J Schafer (2 patents)Ryan LittlerRyan Littler (1 patent)James F PopelkaJames F Popelka (1 patent)Rodney M RamseyRodney M Ramsey (1 patent)Glenn MillerGlenn Miller (1 patent)Steve Irlmeier, DeceasedSteve Irlmeier, Deceased (1 patent)Tim CaltriderTim Caltrider (1 patent)William P SchaferWilliam P Schafer (1 patent)Dennis J DeyenDennis J Deyen (1 patent)Betty L SchaferBetty L Schafer (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Other (8 from 832,961 patents)

2. Schafer Systems Inc. (7 from 13 patents)

3. Ark Therapeutic Services, Inc. (1 from 46 patents)


18 patents:

1. 8746746 - Nestable connector

2. 8127789 - Fluid retaining apparatus with ball valve

3. 7942606 - Groundwater control system with automatic water flow regulator

4. 6302292 - Ticket counting dispenser

5. 6230926 - Ticket counting dispenser with ticket dispensing assembly

6. 6073572 - Floating dock

7. 5868277 - Ticket dispenser base assembly

8. D378507 - Boat

9. 5492398 - Dual modular hinged access display and dispensing structure

10. 5399005 - Stackable locking display and dispensing structure

11. D329877 - Lottery ticket dispenser

12. 5111939 - Self-supporting stacked display and dispenser structure

13. 5100038 - Ticket dispensing structure

14. D319264 - Ticket dispenser

15. 4995507 - Ticket dispensing structure

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as of
1/13/2026
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