STEP Technologies, Inc.
Minneapolis, MN, US· latest recorded location
STEP Technologies, Inc. is named on 14 US grants and 14 published applications in this corpus. Its most frequent classification is H04R (Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers).
- Granted patents
- 14
- Published applications
- 14
- Inventors
- 5
- Granted in 2026 so far
- 0
- Most recent grant
- 17 Feb 2009
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2004 | 0 | 6 |
| 2005 | 2 | 6 |
| 2006 | 4 | 2 |
| 2007 | 5 | 0 |
| 2008 | 1 | 0 |
| 2009 | 2 | 0 |
By publication year.
Technology areas
Share of 28 documents
Recent patents
- Audio speaker with graduated voice coil windings17 Feb 2009US 7,492,918 B2
- Dual-gap transducer with radially-charged magnet13 Jan 2009US 7,477,757 B2
- Laminated motor structure for electromagnetic transducer25 Nov 2008US 7,457,429 B2
- Loudspeaker enclosure with damping material laminated within internal shearing brace18 Sep 2007US 7,270,215 B2
- Electromagnetic transducer with eccentrically mounted voice coil former19 Jun 2007US 7,233,681 B2
- Loudspeaker enclosure with damping material laminated within internal shearing brace19 Oct 2006US 2006/0231327 A1
- Audio speaker with graduated voice coil windings23 Feb 2006US 2006/0039578 A1
- Shorting ring fixture for electromagnetic transducer1 Sep 2005US 2005/0190945 A1
- Dual-gap transducer with radially-charged magnet1 Sep 2005US 2005/0190946 A1
- Electromagnetic transducer having a low reluctance return path11 Aug 2005US 2005/0175213 A1
Most cited
By later US patents
- Push-pull electromagnetic transducer with increased Xmax18US 7,006,654 B22006
- Push-push multiple magnetic air gap transducer16US 6,940,992 B22005
- Electromagnetic transducer having a low reluctance return path12US 7,065,225 B22006
- Thermal chimney equipped audio speaker cabinet12US 7,181,039 B22007
- Tabbed speaker frame with oversized diaphragm9US 7,031,487 B22006