Inventor
Andrew J. Gardner
Inventor
Santa Barbara, CA, US
Overview
Patents· 24 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Lprimary
H04LTransmission of digital information, e.g. telegraphic communication22%
G06FElectric digital data processing10%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems10%
H02HEmergency protective circuit arrangements7%
H04BTransmission7%
G01RMeasuring electric variables5%
H02JElectric power networks5%
H03HImpedance networks, e.g. resonant circuits3%
Y04SSystems integrating technologies related to power network operation, communication or information technologies for improving the electrical power generation, transmission, distribution, management or usage, i.e. smart grids3%
B43KImplements for writing or drawing2%
PatentTitleYear
10,868,680Power over ethernet using shielded single twisted wire pair202010,763,919Galvanic barrier coupler for intrinsically safe power over data line applications202010,547,206Fault-tolerant power network202010,444,823Communications system using hybrid common mode choke and kelvin sensing of voltage201910,404,502Common mode noise attenuation techniques for twisted wire pair201910,382,005Communications system using hybrid common mode choke and kelvin sensing of voltage201910,313,139Power over data lines system with redundant power connections201910,090,666Circuit architectures for protecting against PoDL wire faults20189,967,104Detecting ground isolation fault in ethernet PoDL system20189,860,072'System with sleep and wake up control over DC path'20189,853,838PoDL system with active dV/dt and dI/dt control20179,851,7721-wire bus PD detection and classification scheme for ethernet PoDL20179,780,974'Broadband power coupling/decoupling network for PoDL'20179,676,224'Modular magnet writing instrument and hobby tool'2017D0752685'Pen'20168,786,265'Adjustable current limit switching regulator with constant loop gain'20148,278,895'Efficiency measuring circuit for DC-DC converter which calculates internal resistance of switching inductor based on duty cycle'20128,143,871'Dynamically-compensated controller'20127,940,091'Bootstrapped switch for sampling voltages beyond the supply voltage'20117,420,359'Bandgap curvature correction and post-package trim implemented therewith'20087,382,303'Non-perturbing power supply margin controller'20086,931,643'Interrupt throttling for inter-processor communications'20056,919,962'Reflectometry apparatus and method'20055,839,227'Safety edge for an electrically operated door'1998Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2008–2014Patents assigned to LINEAR TECHN INC (6)· patent assignee history
2008–2014Based in Colorado Springs, CO, US· patent location history
2011–2012Based in Boulder, CO, US· patent location history
2012Patents assigned to GARDNER ANDREW JOSEPH (2)· patent assignee history
2012Based in Louisville, CO, US· patent location history
2016–2017Patents assigned to INDIEDESIGN LTD (2)· patent assignee history
2016–2017Based in Waterloo, CA· patent location history
2017–2020Patents assigned to LINEAR TECH CORP (10)· patent assignee history
2017–2020Based in Santa Barbara, CA, US· patent location history
2020Patents assigned to ANALOG DEVICES INTERNATIONAL UNLIMITED CO (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| LINEAR TECH CORP | 10 | 2017–2020 |
| LINEAR TECHN INC | 6 | 2008–2014 |
| ANALOG DEVICES INTERNATIONAL UNLIMITED CO | 2 | 2020 |
| GARDNER ANDREW JOSEPHself | 2 | 2012 |
| INDIEDESIGN LTD | 2 | 2016–2017 |
Locations
| Location | Patents | Span |
|---|---|---|
| Santa Barbara, California, US | 13 | 2017–2020 |
| Colorado Springs, CO, US | 3 | 2008–2014 |
| Waterloo, CA | 2 | 2016–2017 |
| Boulder, CO, US | 2 | 2011–2012 |
| Louisville, CO, US | 1 | 2012 |