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 76–81 of 81 patents

Patent #TitleCo-InventorsDate
5130064 Method of making a three dimensional object by stereolithography Dennis R. Smalley 1992-07-14
5104592 Method of and apparatus for production of three-dimensional objects by stereolithography with reduced curl Stuart T. Spence, Charles W. Lewis, Wayne A. Vinson, Raymond S. Freed, Dennis R. Smalley 1992-04-14
5059359 Methods and apparatus for production of three-dimensional objects by stereolithography Stuart T. Spence, David J. Albert, Dennis R. Smalley, Richard A. Harlow, Phil Steinbaugh +5 more 1991-10-22
4999143 Methods and apparatus for production of three-dimensional objects by stereolithography Charles W. Lewis 1991-03-12
4929402 Method for production of three-dimensional objects by stereolithography 1990-05-29
4575330 Apparatus for production of three-dimensional objects by stereolithography 1986-03-11