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Forward Citations = 95

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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),

Step Technologies Inc. is a technology solutions provider specializing in software development and digital transformation services. With a team of experienced professionals, we help businesses leverage the power of technology to streamline their operations, enhance productivity, and achieve business goals. Our expertise spans across various industries including finance, healthcare, retail, and manufacturing. Visit our website to learn more about our services and how we can help your business grow and thrive.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

14 Patents

#111 in Minneapolis, MN

#631 in Minnesota

#21,655 in US

#40,961 in the World

Minneapolis, MN, United States of America

Step Technologies Inc.

Forward Citations = 95

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)

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