Enter assignee name

% 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),

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