Growing community of inventors

Des Moines, IA, United States of America

Charles A Haas

Average Co-Inventor Count = 3.14

ph-index = 10

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 = 286

Charles A HaasJohn E Schenken (18 patents)Charles A HaasThomas R Steinhagen (12 patents)Charles A HaasJerome J Hartmann (12 patents)Charles A HaasC Austin Greider (2 patents)Charles A HaasJerome J Hartman (2 patents)Charles A HaasRoy M Johnson (2 patents)Charles A HaasHerbert O Dixon (1 patent)Charles A HaasAlvadore J Osborn (1 patent)Charles A HaasJohn E Shenken (1 patent)Charles A HaasJohn S Schenken (1 patent)Charles A HaasJohn E Shenken (1 patent)Charles A HaasCharles A Haas (23 patents)John E SchenkenJohn E Schenken (18 patents)Thomas R SteinhagenThomas R Steinhagen (38 patents)Jerome J HartmannJerome J Hartmann (37 patents)C Austin GreiderC Austin Greider (6 patents)Jerome J HartmanJerome J Hartman (2 patents)Roy M JohnsonRoy M Johnson (2 patents)Herbert O DixonHerbert O Dixon (6 patents)Alvadore J OsbornAlvadore J Osborn (1 patent)John E ShenkenJohn E Shenken (1 patent)John S SchenkenJohn S Schenken (1 patent)John E ShenkenJohn E Shenken (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Cobbs Manufacturing Company (21 from 55 patents)

2. Other (1 from 832,880 patents)


23 patents:

1. D413293 - Visor mirror

2. 5938160 - Cupholder apparatus for attachment to a surface

3. D393805 - Clock/thermometer combo

4. D392235 - Lighted visor mirror

5. D390147 - Deer warning

6. D389745 - Combined clock and compass

7. D389069 - Combined clock, compass and thermometer

8. D388953 - Expandable key safe

9. D386092 - Jumbo clock

10. D385204 - Thermometer

11. D384290 - Flip lid alarm clock

12. D383983 - Spot clock

13. 5560578 - Adjustable holding device

14. 5528837 - Adjustable magnetic compass

15. D370403 - Adjustable holder

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as of
1/2/2026
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