For the Inventor, By the Inventor

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Scotts Valley, CA, United States of America

E-Mu Systems, Inc.

USPTO Granted Patents = 17

Trademarks = 2

Forward Citations = 303

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10 inventors (with patents filed for the assignee):

David P Rossum (10 out of 41 patents)

Dana C Massie (2 out of 17 patents)

Robert C Bliss (2 out of 2 patents)

4. Pavl C Zachary (1 out of 1 patent)

5. Roger A Cloud (1 out of 1 patent)

6. John R Rossum, Jr (1 out of 2 patents)

7. David R Frost (1 out of 1 patent)

8. Donald Ruffcorn (1 out of 1 patent)

9. Scott Wedge (1 out of 1 patent)

10. D Scott Wedge (1 out of 1 patent)

17 patents: Sort by Forward Citations

1. 6111184 - Interchangeable pickup, electric stringed instrument and system for an (2000-08-29),

2. 5698803 - Digital sampling instrument employing cache memory (1997-12-16),

3. 5524074 - Digital signal processor for adding harmonic content to digital audio (1996-06-04),

4. 5430244 - Dynamic correction of musical instrument input data stream (1995-07-04),

5. 5342990 - Digital sampling instrument employing cache-memory (1994-08-30),

6. 5317104 - Multi-timbral percussion instrument having spatial convolution (1994-05-31),

7. 5303309 - Digital sampling instrument (1994-04-12),

8. 5298671 - Data compression of decaying musical instrument sounds for digital (1994-03-29),

9. 5248845 - Digital sampling instrument (1993-09-28),

10. 5170369 - Dynamic digital IIR audio filter and method which provides dynamic (1992-12-08),

11. 5144676 - Digital sampling instrument (1992-09-01),

12. 5111727 - Digital sampling instrument for digital audio data (1992-05-12),

13. 5072645 - Output stage for a multitimbral electronic musical instrument providing (1991-12-17),

14. 5013105 - Screwless electronic instrument enclosure (1991-05-07),

15. 4987600 - Digital sampling instrument (1991-01-22),

E-mu Systems, Inc. is a leading provider of electronic musical instruments with a focus on professional audio equipment. Established in 1971, the company is known for its innovative products that revolutionize the music industry. E-mu Systems offers a wide range of products including digital synthesizers, MIDI controllers, audio interfaces, and software solutions for musicians and recording artists worldwide.

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

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USPTO Data Jan 1 1976 - Sep 15 2026

17 Patents

#15 in Scotts Valley, CA

#4,503 in California

#18,850 in US

#35,824 in the World

Scotts Valley, CA, United States of America

E-Mu Systems, Inc.

Forward Citations = 303

10 inventors:

David P Rossum (10 out of 41 patents)

Dana C Massie (2 out of 17 patents)

Robert C Bliss (2 out of 2 patents)

4. Pavl C Zachary (1 out of 1 patent)

5. Roger A Cloud (1 out of 1 patent)

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