Inventor
Stuart T. Spence
Inventor
South Pasadena, CA, US
Overview
Patents· 28 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B29Cprimary
B29CShaping or joining of plastics16%
B33YAdditive manufacturing, i.e. manufacturing of three-dimensional [3d] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3d printing, stereolithography or selective laser sintering16%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices11%
G05BControl or regulating systems in general11%
G06TImage data processing or generation, in general10%
G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light10%
B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts7%
G11BInformation storage based on relative movement between record carrier and transducer4%
H04NPictorial communication, e.g. television4%
B44BMachines, apparatus or tools for artistic work, e.g. for sculpturing, guilloching, carving, branding, inlaying3%
PatentTitleYear
6,891,562'Optical design for film conversion device'20056,864,913'Method and apparatus for a reconfigurable digital processor for film conversion'20056,829,012'Method and apparatus for a digital parallel processor for film conversion'20046,724,420'Portable film conversion device'20046,611,293'Method and apparatus for synchronization of ancillary information in film conversion'20036,600,965'Method and apparatus for production of high resolution three-dimensional objects by stereolithography'20036,048,188'Stereolithographic curl reduction'20006,048,487'Recoating stereolithographic layers'20005,891,382'Recoating of stereolithographic layers'19995,870,307'Method and apparatus for production of high resolution three-dimensional objects by stereolithography'19995,772,947'Stereolithographic curl reduction'19985,651,934'Recoating of stereolithographic layers'19975,610,824'Rapid and accurate production of stereolithographic parts'19975,495,328'Apparatus and method for calibrating and normalizing a stereolithographic apparatus'19965,345,391'Method and apparatus for production of high resolution three-dimensional objects by stereolithography'19945,273,691'Stereolithographic curl reduction'19935,267,013'Apparatus and method for profiling a beam'19935,184,307'Method and apparatus for production of high resolution three-dimensional objects by stereolithography'19935,182,056'Stereolithography method and apparatus employing various penetration depths'19935,164,128'Methods for curing partially polymerized parts'19925,137,662'Method and apparatus for production of three-dimensional objects by stereolithography'19925,133,987'Stereolithographic apparatus and method'19925,123,734'Apparatus and method for calibrating and normalizing a stereolithographic apparatus'19925,104,592'Method of and apparatus for production of three-dimensional objects by stereolithography with reduced curl'19925,076,974'Methods of curing partially polymerized parts'19915,059,359'Methods and apparatus for production of three-dimensional objects by stereolithography'19915,059,021'Apparatus and method for correcting for drift in production of objects by stereolithography'19915,058,988'Apparatus and method for profiling a beam'1991Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1991–2003Patents assigned to 3D SYSTEMS INC (19)· patent assignee history
1991–1992Patents assigned to 3 D SYSTEMS INC (3)· patent assignee history
1991–1999Based in South Pasadena, CA, US· patent location history
1992–2003Based in Pasadena, CA, US· patent location history
1999Patents assigned to 3D SYSTEM INC (1)· patent assignee history
2003–2004Patents assigned to DFR2000 INC (3)· patent assignee history
2003–2005Based in Sunland, CA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| 3D SYSTEMS INC | 19 | 1991–2003 |
| 3 D SYSTEMS INC | 3 | 1991–1992 |
| DFR2000 INC | 3 | 2003–2004 |
| 3D SYSTEM INC | 1 | 1999 |
Locations
| Location | Patents | Span |
|---|---|---|
| South Pasadena, California, US | 14 | 1991–1999 |
| Pasadena, California, US | 9 | 1992–2003 |
| Sunland, California, US | 5 | 2003–2005 |