Inventor
Choung-Houng Lai
Inventor
Acton, MA, US
Overview
Patents· 15 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C08Lprimary
C08LCompositions of macromolecular compounds19%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form11%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds11%
E04CStructural elements8%
B28BShaping clay or other ceramic compositions5%
G03GElectrography5%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
Y10TTechnical subjects covered by former us classification5%
B29CShaping or joining of plastics3%
B64CAeroplanes3%
PatentTitleYear
10,857,770Building board and method of forming the building board202010,837,176Roofing shingles, tiles and shakes202010,662,304Composites for protecting signal transmitters/receivers202010,233,641Polyester laminated building boards with improved surface characteristics20199,834,929'Polyester laminated building boards with improved surface characteristics'20179,656,876'Method for reducing elemental sulfur in gypsum products'20179,416,267'Blend composition, flexible tubing material and method of making the blend'20168,652,745'Ink toner particles with controlled surface morphology'20148,247,155'Production of toner for use in printing applications'20125,654,365'Styrenic polymer composition'19975,409,967'Amorphous, aromatic polyester containing impact modifier'19955,322,663'Moldable crystalline polyester composition'19945,321,056'Amorphous, aromatic polyester containing impact modifier'19945,310,799'Aromatic polyester melt strength improver'19945,268,438'Aromatic polyester melt strength improver'1993Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1993–1997Patents assigned to ROHM & HAAS (6)· patent assignee history
1993–1995Based in Newtown, PA, US· patent location history
1997Based in Hsinchu County, TW· patent location history
2012–2014Patents assigned to LAI CHOUNG (2)· patent assignee history
2012–2014Patents assigned to PENN COLOR INC (2)· patent assignee history
2012–2014Patents assigned to RYBNY CHARLES B (2)· patent assignee history
2012–2014Based in Doylestown, PA, US· patent location history
2016–2020Based in Acton, MA, US· patent location history
2017–2020Patents assigned to CERTAINTEED GYPSUM INC (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ROHM & HAAS | 6 | 1993–1997 |
| CERTAINTEED GYPSUM INC | 2 | 2017–2020 |
| LAI CHOUNGself | 2 | 2012–2014 |
| PENN COLOR INC | 2 | 2012–2014 |
| RYBNY CHARLES B | 2 | 2012–2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Acton, Massachusetts, US | 7 | 2016–2020 |
| Newtown, Pennsylvania, US | 5 | 1993–1995 |
| Doylestown, Pennsylvania, US | 2 | 2012–2014 |
| Hsinchu County, TW | 1 | 1997 |