Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
CH

Charles W. Hull

3S3D Systems: 76 patents #1 of 374Top 1%
STSeagate Technology: 1 patents #2,726 of 4,626Top 60%
UVUvp: 1 patents #10 of 16Top 65%
Santa Clarita, CA: #3 of 1,031 inventorsTop 1%
California: #3,334 of 386,348 inventorsTop 1%
Overall (All Time): #22,182 of 4,157,543Top 1%
81 Patents All Time

Issued Patents All Time

Showing 51–75 of 81 patents

Patent #TitleCo-InventorsDate
5711911 Method of and apparatus for making a three-dimensional object by stereolithography 1998-01-27
5651934 Recoating of stereolithographic layers Thomas A. Almquist, Borzo Modrek, Paul F. Jacobs, Charles W. Lewis, Adam L. Cohen +2 more 1997-07-29
5637169 Method of building three dimensional objects with sheets Paul F. Jacobs, Kris Schmidt, Dennis R. Smalley, Wayne A. Vinson 1997-06-10
5630981 Method for production of three-dimensional objects by stereolithography 1997-05-20
5609812 Method of making a three-dimensional object by stereolithography Craig M. Childers 1997-03-11
5609813 Method of making a three-dimensional object by stereolithography Joseph W. Allison, Dennis R. Smalley, Paul F. Jacobs 1997-03-11
5597520 Simultaneous multiple layer curing in stereolithography Dennis R. Smalley, Thomas J. Vorgitch, Chris R. Manners, Stacie L. VanDorin 1997-01-28
5573722 Method and apparatus for production of three-dimensional objects by stereolithography 1996-11-12
5571471 Method of production of three-dimensional objects by stereolithography 1996-11-05
5569431 Method and apparatus for production of three-dimensional objects by stereolithography 1996-10-29
5556590 Apparatus for production of three-dimensional objects by stereolithography 1996-09-17
5554336 Method and apparatus for production of three-dimensional objects by stereolithography 1996-09-10
5447822 Apparatus and related method for forming a substantially flat stereolithographic working surface Adam L. Cohen, Stuart L. Spence, Charles W. Lewis 1995-09-05
5344298 Apparatus for making three-dimensional objects by stereolithography 1994-09-06
5345391 Method and apparatus for production of high resolution three-dimensional objects by stereolithography Stuart T. Spence, David J. Albert, Dennis R. Smalley, Richard A. Harlow, Phil Stinebaugh +5 more 1994-09-06
5273691 Stereolithographic curl reduction Stuart T. Spence, Charles W. Lewis, Wayne Vinson, Raymond S. Freed, Dennis R. Smalley 1993-12-28
5256340 Method of making a three-dimensional object by stereolithography Joseph W. Allison, Jan Richter, Craig M. Childers, Dennis R. Smalley, Paul F. Jacobs 1993-10-26
5248456 Method and apparatus for cleaning stereolithographically produced objects Herbert E. Evans, Jr., Ernest W. Ertley, Richard N. Leyden 1993-09-28
5236637 Method of and apparatus for production of three dimensional objects by stereolithography 1993-08-17
5234636 Methods of coating stereolithographic parts Richard N. Leyden, Marek Sekowski 1993-08-10
5192559 Apparatus for building three-dimensional objects with sheets Paul F. Jacobs, Kris Schmidt, Dennis R. Smalley, Wayne A. Vinson 1993-03-09
5184307 Method and apparatus for production of high resolution three-dimensional objects by stereolithography Stuart T. Spence, David J. Albert, Dennis R. Smalley, Richard A. Harlow, Phil Stinebaugh +5 more 1993-02-02
5182055 Method of making a three-dimensional object by stereolithography Joseph W. Allison, Jan Richter, Craig M. Childers, Dennis R. Smalley, Paul F. Jacobs 1993-01-26
5174943 Method for production of three-dimensional objects by stereolithography 1992-12-29
5137662 Method and apparatus for production of three-dimensional objects by stereolithography Borzo Modrek, Brent Parker, Raymond S. Freed, Thomas A. Almquist, Stuart T. Spence +10 more 1992-08-11