Amaratunga; Gehan Anil Joseph
Patent Applications and Registrations
Patent applications and USPTO patent grants for Amaratunga; Gehan Anil Joseph.The latest application filed is for "grid synchronisation".
Company Profile
4.30.22
- Amaratunga; Gehan Anil Joseph - Cambridge GB
- Amaratunga; Gehan Anil Joseph - Homagama LK
- Amaratunga; Gehan Anil Joseph - Cambridgeshire GB
Patent Activity
| Patent | Date |
|---|---|
| Grid synchronisation Grant 11,303,134 - Amaratunga , et al. April 12, 2 | 2022-04-12 |
| Grid Synchronisation App 20210226453 - Amaratunga; Gehan Anil Joseph ; et al. | 2021-07-22 |
| Grid synchronisation Grant 10,903,658 - Amaratunga , et al. January 26, 2 | 2021-01-26 |
| Textile material and process for obtaining the same Grant 10,508,386 - Udayakantha , et al. Dec | 2019-12-17 |
| Solar photovoltaic systems Grant 10,418,818 - Chisenga , et al. Sept | 2019-09-17 |
| Power supply circuits Grant 10,291,032 - Mumtaz , et al. | 2019-05-14 |
| Power conditioning units Grant 10,193,467 - Chisenga , et al. Ja | 2019-01-29 |
| Grid Synchronisation App 20180241217 - Amaratunga; Gehan Anil Joseph ; et al. | 2018-08-23 |
| Grid synchronisation Grant 9,997,923 - Amaratunga , et al. June 12, 2 | 2018-06-12 |
| Power conditioning units Grant 9,812,980 - Chisenga , et al. November 7, 2 | 2017-11-07 |
| Near Infrared Energy Absorbing Textile App 20170314185 - Wijesena; Ruchira Nalinga ; et al. | 2017-11-02 |
| Textile Material and Process for Obtaining the Same App 20170314187 - Udayakantha; Krawe Sharini Malsha ; et al. | 2017-11-02 |
| Power Conditioning Units App 20170288406 - Chisenga; Lesley ; et al. | 2017-10-05 |
| Power Supply Circuits App 20160359331 - Mumtaz; Asim ; et al. | 2016-12-08 |
| Solar Photovoltaic Systems App 20160261117 - Chisenga; Lesley ; et al. | 2016-09-08 |
| Power supply circuits Grant 9,425,623 - Mumtaz , et al. August 23, 2 | 2016-08-23 |
| Power Conditioning Units App 20160226390 - Chisenga; Lesley ; et al. | 2016-08-04 |
| Solar photovoltaic systems Grant 9,276,409 - Chisenga , et al. March 1, 2 | 2016-03-01 |
| Power condition units with MPPT Grant 9,270,191 - Chisenga , et al. February 23, 2 | 2016-02-23 |
| Power Conditioning Units App 20130279210 - Chisenga; Lesley ; et al. | 2013-10-24 |
| Power Supply Circuits App 20130234518 - Mumtaz; Asim ; et al. | 2013-09-12 |
| Power supply device and method for driving the same Grant 8,531,857 - Soeno , et al. September 10, 2 | 2013-09-10 |
| Grid Synchronisation App 20130134790 - Amaratunga; Gehan Anil Joseph ; et al. | 2013-05-30 |
| Power supply circuits Grant 8,405,248 - Mumtaz , et al. March 26, 2 | 2013-03-26 |
| Power conditioning units Grant 8,405,367 - Chisenga , et al. March 26, 2 | 2013-03-26 |
| Grid synchronisation Grant 8,310,101 - Amaratunga , et al. November 13, 2 | 2012-11-13 |
| Semiconductor device and method of forming a semiconductor device Grant 8,304,316 - Udrea , et al. November 6, 2 | 2012-11-06 |
| Solar Photovoltaic Systems App 20120161528 - Mumtaz; Asim ; et al. | 2012-06-28 |
| Power supply circuits Grant 8,067,855 - Mumtaz , et al. November 29, 2 | 2011-11-29 |
| Switching device Grant 8,053,783 - Amaratunga , et al. November 8, 2 | 2011-11-08 |
| Grid Synchronisation App 20110049990 - Amaratunga; Gehan Anil Joseph ; et al. | 2011-03-03 |
| Power Conditioning Units App 20100309692 - Chisenga; Lesley ; et al. | 2010-12-09 |
| Power Supply Device And Method For Driving The Same App 20100283514 - Soeno; Akitaka ; et al. | 2010-11-11 |
| Power Supply Circuits App 20100264736 - Mumtaz; Asim ; et al. | 2010-10-21 |
| Semiconductor device and method of forming a semiconductor device Grant 7,679,160 - Udrea , et al. March 16, 2 | 2010-03-16 |
| Power semiconductor and method of fabrication Grant 7,589,379 - Amaratunga , et al. September 15, 2 | 2009-09-15 |
| Semiconductor Device And Method Of Forming A Semiconductor Device App 20090160015 - UDREA; Florin ; et al. | 2009-06-25 |
| Half Bridge Circuit And Method Of Operating A Half Bridge Circuit App 20090058498 - UDREA; Florin ; et al. | 2009-03-05 |
| Switching Device App 20080203397 - Amaratunga; Gehan Anil Joseph ; et al. | 2008-08-28 |
| Power semiconductor and method of fabrication Grant 7,355,226 - Amaratunga , et al. April 8, 2 | 2008-04-08 |
| Power supply circuits App 20070133241 - Mumtaz; Asim ; et al. | 2007-06-14 |
| Power semiconductor and method of fabrication App 20060049406 - Amaratunga; Gehan Anil Joseph ; et al. | 2006-03-09 |
| Method of producing nanoparticles App 20050121309 - Chhowalla, Manish ; et al. | 2005-06-09 |
| Field emission cathode and field emission display Grant 6,853,127 - Eccleston , et al. February 8, 2 | 2005-02-08 |
| Lateral semiconductor device Grant 6,693,340 - Amaratunga , et al. February 17, 2 | 2004-02-17 |
| Electron emission film and field emission cold cathode device Grant 6,469,425 - Sakai , et al. October 22, 2 | 2002-10-22 |
| Semiconductor device Grant 6,445,054 - Traijkovic , et al. September 3, 2 | 2002-09-03 |
| Emitter-switched thyristor having a floating ohmic contact Grant 5,925,900 - Amaratunga , et al. July 20, 1 | 1999-07-20 |
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