Issued Patents All Time
Showing 1–25 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11660367 | Airborn pathogen disenfecting system for an HVAC system | Pravin Nanayakkara | 2023-05-30 |
| 9890533 | Metal stud frame element | — | 2018-02-13 |
| 9340977 | Multi-element constructional assembly for joist girders | — | 2016-05-17 |
| 9067652 | Surfboard with safety mechanism | Pravin Nanayakkara | 2015-06-30 |
| 8987932 | Deep water hydro-electric power system | Pravin Nanayakkara | 2015-03-24 |
| 8749086 | Deep water hydro-electric power system | Pravin Nanayakkara | 2014-06-10 |
| D695914 | Inter-locking construction block | — | 2013-12-17 |
| D691287 | Square masonry block | — | 2013-10-08 |
| D691288 | Interlocking pavement block | — | 2013-10-08 |
| D686756 | Constructional long block | — | 2013-07-23 |
| D683055 | Inter-locking construction block | — | 2013-05-21 |
| D679416 | Garden block | — | 2013-04-02 |
| D675749 | Elongate inter-locking construction block | — | 2013-02-05 |
| D674918 | Square masonry block | — | 2013-01-22 |
| D674917 | Elongate inter-locking construction block | — | 2013-01-22 |
| 7571577 | Blast protective barrier system | — | 2009-08-11 |
| 7308778 | Metal stud frame | — | 2007-12-18 |
| 7165916 | Method of on-site construction of concrete column and panel fence system | — | 2007-01-23 |
| 7051484 | Metal stud frame element construction panel | — | 2006-05-30 |
| 6988347 | Metal stud frame element | — | 2006-01-24 |
| 6867697 | System for guiding the visually handicapped | Pravin Nanayakkara, Anya R. Nanayakkara | 2005-03-15 |
| 6615563 | Metal stud frame element | — | 2003-09-09 |
| 6578338 | Constructional brick | — | 2003-06-17 |
| 6550208 | Constructional components for use in a wall structure | — | 2003-04-22 |
| 6167674 | Light-gauge truss framing element | — | 2001-01-02 |