3D SYSTEMS, INC.
486Patents
289Active
486Granted
55Portfolio score
Filing activity: Apr 18, 1988 → Jun 4, 2024 · 56 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5130064A | Method of making a three dimensional object by stereolithography | Physics | 469 | Expired |
| US5236637A | Method of and apparatus for production of three dimensional objects by stereolithography | Emerging Cross-Sectional Technologies | 388 | Expired |
| US5902537A | Rapid recoating of three-dimensional objects formed on a cross-sectional basis | Performing Operations; Transporting | 307 | Expired |
| US5943235A | Rapid prototyping system and method with support region data processing | Performing Operations; Transporting | 280 | Expired |
| US5248456A | Method and apparatus for cleaning stereolithographically produced objects | Emerging Cross-Sectional Technologies | 275 | Expired |
| US6193923A | Selective deposition modeling method and apparatus for forming three-dimensional objects and supports | Performing Operations; Transporting | 275 | Expired |
| US5192559A | Apparatus for building three-dimensional objects with sheets | Emerging Cross-Sectional Technologies | 243 | Expired |
| US6764636B1 | Fast three-dimensional modeling method and device | Performing Operations; Transporting | 230 | Expired |
| US6815636B2 | Sintering using thermal image feedback | Performing Operations; Transporting | 220 | Expired |
| US5182056A | Stereolithography method and apparatus employing various penetration depths | Physics | 200 | Expired |
| US5447822A | Apparatus and related method for forming a substantially flat stereolithographic working surface | Performing Operations; Transporting | 198 | Expired |
| US5143663A | Stereolithography method and apparatus | Performing Operations; Transporting | 190 | Expired |
| US4929402A | Method for production of three-dimensional objects by stereolithography | Physics | 171 | Expired |
| US6305769A | Selective deposition modeling system and method | Performing Operations; Transporting | 164 | Expired |
| US5104592A | Method of and apparatus for production of three-dimensional objects by stereolithography with reduced curl | Physics | 157 | Expired |
| US5096530A | Resin film recoating method and apparatus | Emerging Cross-Sectional Technologies | 154 | Expired |
| US5141680A | Thermal stereolighography | Physics | 153 | Expired |
| US5945058A | Method and apparatus for identifying surface features associated with selected lamina of a three-dimensional object being stereolithographically formed | Performing Operations; Transporting | 145 | Expired |
| US6162378A | Method and apparatus for variably controlling the temperature in a selective deposition modeling environment | Performing Operations; Transporting | 144 | Expired |
| US5174931A | Method of and apparatus for making a three-dimensional product by stereolithography | Emerging Cross-Sectional Technologies | 143 | Expired |
| US5059359A | Methods and apparatus for production of three-dimensional objects by stereolithography | Physics | 141 | Expired |
| US5184307A | Method and apparatus for production of high resolution three-dimensional objects by stereolithography | Physics | 131 | Expired |
| US5182715A | Rapid and accurate production of stereolighographic parts | Physics | 124 | Expired |
| US6270335A | Selective deposition modeling method and apparatus for forming three-dimensional objects and supports | Performing Operations; Transporting | 123 | Expired |
| US4999143A | Methods and apparatus for production of three-dimensional objects by stereolithography | Physics | 122 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.