IXYS CORP /DE/ Expired Patents
14 granted patents the USPTO lists as expired; the status gives the reason, newest filing first, as the USPTO Open Data Portal records them; the company is the first-named applicant. The application number opens the full record at Patent Center.
- 2017-09-01: Application 15693494; Invention Synchronous Sensing Of Inductor Current In A Buck Converter Control Circuit; Applicant IXYS Corporation; Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362.
- 2017-02-02: Application 15423421; Invention High-Speed MOSFET and IGBT Gate Driver; Applicant IXYS Corporation; Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362.
- 2017-01-22: Application 15412051; Invention Reverse Bipolar Junction Transistor Integrated Circuit; Applicant IXYS Corporation; Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362.
- 2016-11-30: Application 15365547; Invention Multi-Stage LED Driver With Current Proportional To Rectified Input Voltage And Low Distortion; Applicant IXYS Corporation; Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362.
| Filed | Application | Invention | Applicant | Status | Granted | Patent | Published as | Inventor name | Inventor country | Examiner |
|---|---|---|---|---|---|---|---|---|---|---|
| 2017-09-01 | 15693494 | Synchronous Sensing Of Inductor Current In A Buck Converter Control Circuit | IXYS Corporation | Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 | 2018-08-14 | 10050527 | US20170366084A1 | Anatoliy V. Tsyrganovich | United States | ILIYA, BART |
| 2017-02-02 | 15423421 | High-Speed MOSFET and IGBT Gate Driver | IXYS Corporation | Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 | 2018-09-04 | 10069485 | US20180219532A1 | Anatoliy V. Tsyrganovich Leonid A. Neyman | United States United States | KIM, JUNG H |
| 2017-01-22 | 15412051 | Reverse Bipolar Junction Transistor Integrated Circuit | IXYS Corporation | Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 | 2018-08-28 | 10062686 | US20170162561A1 | Kyoung Wook Seok | United States | GRAY, AARON J |
| 2016-11-30 | 15365547 | Multi-Stage LED Driver With Current Proportional To Rectified Input Voltage And Low Distortion | IXYS Corporation | Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 | 2018-03-20 | 9924573 | US20170181232A1 | Bret Ross Howe Narasimham Patibandla | United States United States | KING, MONICA C |
| 2016-09-26 | 15276002 | Chopper Stabilized Amplifier With Synchronous Switched Capacitor Noise Filtering | IXYS Corporation | Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 | 2017-07-04 | 9698741 | US20170077881A1 | Eric Blom | United States | CHOE, HENRY |
| 2016-05-31 | 15169526 | HIGH-VOLTAGE STACKED TRANSISTOR CIRCUIT | IXYS Corporation | Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 | 2017-03-14 | 9595950 | Kyoung Wook Seok | United States | NGUYEN, LONG T | |
| 2016-03-26 | 15081880 | Programmable Temperature Compensated Voltage Generator | IXYS Corporation | Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 | 2018-01-02 | 9857823 | US20170031380A1 | Eric Blom Anatoliy Tsyrganovich James Anderson | United States United States United States | TRA, ANH QUAN |
| 2015-11-02 | 14930604 | BUCK CONVERTER HAVING SELF-DRIVEN BJT SYNCHRONOUS RECTIFIER | IXYS Corporation | Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 | 2017-10-24 | 9800159 | US20160056723A1 | Kyoung Wook Seok | United States | PEREZ, BRYAN REYNALDO |
| 2015-06-06 | 14732688 | AC Line Filter And AC-To-DC Rectifier Module | IXYS Corporation | Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 | 2017-05-02 | 9641065 | US20160359404A1 | Kyoung Wook Seok | United States | LEE, JYE-JUNE |
| 2015-04-30 | 14700431 | Non-Isolated AC-To-DC Converter With Fast Dep-FET Turn On And Turn Off | IXYS Corporation | Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 | 2017-02-14 | 9571003 | US20150236613A1 | Leonid A. Neyman | United States | NGO, BRIAN |
| 2015-03-31 | 14675704 | Reverse Bipolar Junction Transistor Integrated Circuit | IXYS Corporation | Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 | 2017-03-07 | 9589953 | US20160293594A1 | Kyoung Wook Seok | United States | GRAY, AARON J |
| 2013-06-19 | 13922203 | Video And Content Controlled Backlight | IXYS Corporation | Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 | 2016-05-31 | 9355580 | US20130279153A1 | Nathan Zommer Sam Seiichiro Ochi | United States United States | LEE JR, KENNETH B |
| 2013-05-22 | 13900451 | LOW FORWARD VOLTAGE RECTIFIER USING CAPACITIVE CURRENT SPLITTING | IXYS Corporation | Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 | 2015-05-26 | 9042143 | US20130249529A1 | Kyoung Wook Seok | United States | BERHANE, ADOLF D |
| 2012-10-06 | 13646697 | Reflow of Thermoplastic Sheet for Passivation of Power Integrated Circuits | IXYS CORPORATION | Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 | 2013-11-05 | 8575767 | Nathan Zommer | United States | POTTER, ROY KARL |