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Cambridge, MA, United States of America

Sand 9, Inc.

USPTO Granted Patents = 52

% Expired Patents = 7.7

EPO Patents = 1

Forward Citations = 297

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20 inventors (with patents filed for the assignee):

Jan H Kuypers (30 out of 40 patents)

Guiti Zolfagharkhani (24 out of 30 patents)

Klaus Juergen Schoepf (24 out of 34 patents)

4. Alexei Gaidarzhy (22 out of 29 patents)

5. Reimund Rebel (21 out of 31 patents)

6. David M Chen (20 out of 22 patents)

7. Pritiraj Mohanty (15 out of 39 patents)

8. Jason Goodelle (6 out of 6 patents)

9. Dean A Badillo (6 out of 21 patents)

10. Andrew William Sparks (3 out of 21 patents)

11. Florian Thalmayr (3 out of 11 patents)

12. Bruce Michael Newman (2 out of 8 patents)

13. Mohammad Asmani (2 out of 3 patents)

14. David Locascio (2 out of 5 patents)

15. Matthew J Crowley (2 out of 2 patents)

Core Competencies:

MEMS Microphone

Mechanical Resonating Structures

Temperature Compensation

Timing Oscillators

Noise Reduction

Piezoelectric Materials

Signal Amplification

Microelectromechanical Gyroscopes

Arbitrary Frequencies

Calibration Methods

Variable Phase Amplifier

Integrated Circuit Wiring

52 patents: Sort by Forward Citations

1. 9048811 - Integration of piezoelectric materials with substrates (2015-06-02),

2. 9030080 - Microelectromechanical systems (MEMS) resonators and related apparatus and methods (2015-05-12),

3. 9029963 - MEMS microphone (2015-05-12),

4. 9013245 - Oscillators having arbitrary frequencies and related systems and methods (2015-04-21),

5. 9013088 - Field effect control of a microelectromechanical (MEMS) resonator (2015-04-21),

6. 9000854 - Timing oscillator having a non-linear MEMS resonator and related methods (2015-04-07),

7. 9000848 - Noise reduction in MEMS oscillators and related apparatus and methods (2015-04-07),

8. 8947171 - Coupled timing oscillators (2015-02-03),

9. 8937425 - Mechanical resonating structures including a temperature compensation structure (2015-01-20),

10. 8933565 - Integrated circuit wiring fabrication and related methods and apparatus (2015-01-13),

11. 8896385 - Oscillators having arbitrary frequencies and related systems and methods (2014-11-25),

12. 8896188 - Resonator electrodes and related methods and apparatus (2014-11-25),

13. 8878619 - Variable phase amplifier circuit and method of use (2014-11-04),

14. 8833161 - Microelectromechanical gyroscopes and related apparatus and methods (2014-09-16),

15. 8791762 - Method and apparatus for managing arbitrary frequencies (2014-07-29),

Company Overview

Sand 9, Inc., based in Cambridge, MA, specializes in the development of advanced microelectromechanical systems (MEMS) technology. The company focuses on creating innovative solutions such as MEMS microphones and mechanical resonating structures, which are integral to enhancing audio performance and signal clarity in various applications. Their expertise extends to temperature compensation, timing oscillators, and noise reduction techniques, leveraging piezoelectric materials and signal amplification to improve device functionality. Additionally, Sand 9 is involved in the design of microelectromechanical gyroscopes, contributing to advancements in navigation and motion sensing technologies.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

52 Patents

#50 in Cambridge, MA

#384 in Massachusetts

#6,764 in US

#13,555 in the World

Cambridge, MA, United States of America

Sand 9, Inc.

Forward Citations = 297

20 inventors:

Jan H Kuypers (30 out of 40 patents)

Guiti Zolfagharkhani (24 out of 30 patents)

Klaus Juergen Schoepf (24 out of 34 patents)

4. Alexei Gaidarzhy (22 out of 29 patents)

5. Reimund Rebel (21 out of 31 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sand 9, Inc.. Retrieved from https://idiyas.com/company/sand-9

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]

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