Sand 9, Inc.
52Patents
52Active
52Granted
56Portfolio score
Filing activity: Oct 11, 2007 → Sep 24, 2013 · 18 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US9029963B2 | MEMS microphone | Electricity | 28 | Active |
| US8058769B2 | Mechanical resonating structures including a temperature compensation structure | Electricity | 25 | Active |
| US8466606B2 | Integration of piezoelectric materials with substrates | Emerging Cross-Sectional Technologies | 22 | Active |
| US8410868B2 | Methods and apparatus for temperature control of devices and mechanical resonating structures | Electricity | 20 | Active |
| US8362675B2 | Mechanical resonating structures including a temperature compensation structure | Electricity | 14 | Active |
| US8395456B2 | Variable phase amplifier circuit and method of use | Electricity | 14 | Active |
| US8689426B2 | Method of manufacturing a resonating structure | Emerging Cross-Sectional Technologies | 13 | Active |
| US8446222B2 | Apparatus and methods for reducing noise in oscillating signals | Electricity | 11 | Active |
| US8698376B2 | Microelectromechanical systems (MEMS) resonators and related apparatus and methods | Electricity | 9 | Active |
| US8629599B2 | Mechanical resonating structures including a temperature compensation structure | Electricity | 8 | Active |
| US8415993B1 | Power-on reset circuit and method | Electricity | 8 | Active |
| US8446078B2 | Mechanical resonating structures and methods | Electricity | 8 | Active |
| US8587183B2 | Microelectromechanical systems (MEMS) resonators and related apparatus and methods | Electricity | 7 | Active |
| US7990229B2 | Methods and devices for compensating a signal using resonators | Electricity | 7 | Active |
| US8228127B2 | Oscillators having arbitrary frequencies and related systems and methods | Electricity | 7 | Active |
| US8704604B2 | Oscillators having arbitrary frequencies and related systems and methods | Electricity | 6 | Active |
| US8174170B1 | Methods and apparatus for mechanical resonating structures | Electricity | 6 | Active |
| US8476809B2 | Microelectromechanical systems (MEMS) resonators and related apparatus and methods | Electricity | 6 | Active |
| US8937425B2 | Mechanical resonating structures including a temperature compensation structure | Electricity | 5 | Active |
| US8319566B2 | Methods and apparatus for tuning devices having mechanical resonators | Electricity | 5 | Active |
| US8446227B2 | Methods and apparatus for tuning devices having mechanical resonators | Electricity | 5 | Active |
| US8456250B2 | Methods and apparatus for tuning devices having resonators | Electricity | 5 | Active |
| US8044737B2 | Timing oscillators and related methods | Electricity | 5 | Active |
| US8772999B2 | Signal amplification by hierarchal resonating structures | Electricity | 5 | Active |
| US9013088B1 | Field effect control of a microelectromechanical (MEMS) resonator | Electricity | 4 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.