% Expired Patents = 71.4

Forward Citations = 97

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4 inventors (with patents filed for the assignee):

Enrique M Stiles (14 out of 14 patents)

Richard C Calderwood (6 out of 12 patents)

Patrick M Tummire (1 out of 1 patent)

4. Patrick M Turnmire (1 out of 1 patent)

14 patents: Sort by Forward Citations

1. 7492918 - Audio speaker with graduated voice coil windings (2009-02-17),

2. 7477757 - Dual-gap transducer with radially-charged magnet (2009-01-13),

3. 7457429 - Laminated motor structure for electromagnetic transducer (2008-11-25),

4. 7270215 - Loudspeaker enclosure with damping material laminated within internal shearing brace (2007-09-18),

5. 7233681 - Electromagnetic transducer with eccentrically mounted voice coil former (2007-06-19),

6. 7227970 - Shorting ring fixture for electromagnetic transducer (2007-06-05),

7. 7181039 - Thermal chimney equipped audio speaker cabinet (2007-02-20),

8. 7177440 - Electromagnetic transducer with asymmetric diaphragm (2007-02-13),

9. 7065225 - Electromagnetic transducer having a low reluctance return path (2006-06-20),

10. 7031487 - Tabbed speaker frame with oversized diaphragm (2006-04-18),

11. 7006654 - Push-pull electromagnetic transducer with increased Xmax (2006-02-28),

12. 6996247 - Push-push multiple magnetic air gap transducer (2006-02-07),

13. 6940992 - Push-push multiple magnetic air gap transducer (2005-09-06),

14. 6917690 - Electromagnetic transducer having multiple magnetic air gaps whose magnetic flux is in a same direction (2005-07-12),

Company Overview

Step Technologies Inc., based in Minneapolis, MN, specializes in innovative technology solutions that enhance operational efficiency across various industries. The company focuses on developing advanced software applications and systems that streamline processes and improve user experiences. With a commitment to research and development, Step Technologies is at the forefront of integrating cutting-edge technologies, including automation and data analytics, to address complex challenges in the modern business landscape.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

14 Patents

#121 in Minneapolis, MN

#647 in Minnesota

#22,333 in US

#42,290 in the World

Minneapolis, MN, United States of America

Step Technologies Inc.

Forward Citations = 97

4 inventors:

Enrique M Stiles (14 out of 14 patents)

Richard C Calderwood (6 out of 12 patents)

Patrick M Tummire (1 out of 1 patent)

4. Patrick M Turnmire (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Step Technologies Inc.. Retrieved from https://idiyas.com/company/step-technologies

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]