Growing community of inventors

Minneapolis, MN, United States of America

Keith Louis Amdahl

Average Co-Inventor Count = 2.29

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 = 314

Keith Louis AmdahlDan L Otterson (5 patents)Keith Louis AmdahlChristopher J Rogney (5 patents)Keith Louis AmdahlVerne L Severson (4 patents)Keith Louis AmdahlMark G Bussey (4 patents)Keith Louis AmdahlMatthew Charles Burk (3 patents)Keith Louis AmdahlFred C Zimmerman (3 patents)Keith Louis AmdahlKong Meng Vang (3 patents)Keith Louis AmdahlKeith Louis Amdahl (12 patents)Dan L OttersonDan L Otterson (6 patents)Christopher J RogneyChristopher J Rogney (6 patents)Verne L SeversonVerne L Severson (7 patents)Mark G BusseyMark G Bussey (6 patents)Matthew Charles BurkMatthew Charles Burk (9 patents)Fred C ZimmermanFred C Zimmerman (8 patents)Kong Meng VangKong Meng Vang (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Smarte Carte, Inc. (11 from 29 patents)

2. Smart Carte, Inc. (1 from 2 patents)


12 patents:

1. 9558608 - Electronic locker right acquisition via an external system

2. 9430892 - Locker rental system using external codes

3. 9158946 - Locker system using barcoded wristbands

4. 8714452 - System for dispensing wristbands with unique indicia

5. 8500012 - Locker system using barcoded wristbands

6. 7857108 - Brake assembly and control mechanism for a cart, and method

7. D556098 - Child stroller

8. 6142283 - Cart management system

9. 6125985 - Cart management system

10. 6024203 - Cart management system and method

11. 5921373 - Cart management system

12. 5526916 - Cart management system

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as of
12/20/2025
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