278 patents currently held
22 more in force are now held by other companies
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
11 more records may belong here and await a decision; they are not counted.
The next term ends in Jan 2027. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
68
Ending by 2030
Jan 2027
Next term end
200
Patent families
When these terms end
Held patents by the year their term ends
notable patents
fee due within 90 days
all others
Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
Notable: the highest-ranked patents in this portfolio by citations and family size. Fee due within 90 days: a maintenance fee is due within 90 days of when this page was computed and not yet paid.
Notable patents
Ranked by citations and family size, against patents of the same kind granted the same year. How we rank
Notable
Ends Nov 2034 · High confidence
Also notable
Ends May 2031 · High confidence
Also notable
Ends May 2031 · High confidence
Support Structures and Deposition Techniques for 3D Printing
US 9,469,057
Cited by 126 later US patents, top 5% of utility patents granted in 2016 in our data, and renewed at every maintenance window due so far. Protection runs to 2034.
Modular Custom Braces, Casts and Devices and Methods for Designing and Fabricating
US 11,007,070
Cited by 22 later US patents, top 10% of utility patents granted in 2021 in our data. Protection runs to 2031.
Build Material and Applications Thereof
US 9,394,441
Cited by 44 later US patents, top 10% of utility patents granted in 2016 in our data, and renewed at every maintenance window due so far. Protection runs to 2031.
Formerly held, still cited
Notable
Ends May 2029 · High confidence
Cited by 142 later US patents, top 5% of utility patents granted in 2013 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2029.
now held by Simbionix Ltd.
Fee deadlines
Maintenance fees fall due 3.5, 7.5 and 11.5 years after grant. A missed fee ends a patent at the end of the six month grace period that follows, not on the due date.
- 4 fees due Nov 14 to 23, 2026 · next Nov 14
- 5 fees due Dec 11 to 25, 2026 · next Dec 11
- 4 fees due Jan 4 to 18, 2027 · next Jan 4
- 7 fees due Feb 8 to 28, 2027 · next Feb 8
- 3 fees due Mar 19 to 26, 2027 · next Mar 19
- 10 fees due Apr 3 to 30, 2027 · next Apr 3
- 7 fees due May 7 to 28, 2027 · next May 7
- 2 fees due Jun 5 to 24, 2027 · next Jun 5
- 6 fees due Jul 12 to 23, 2027 · next Jul 12
- 4 fees due Aug 6 to 27, 2027 · next Aug 6
- 5 fees due Sep 3 to 26, 2027 · next Sep 3
- 2 fees due Oct 2 to 7, 2027 · next Oct 2
- 1 fee due Nov 5, 2027The maintenance fee for Three Dimensional Printing System with Improved Machine Architecture (US 10,639,880) comes due Nov 5, 2027. Unpaid by May 5, 2028, it lapses early.
Recent changes
- 1 of the patents on this record was granted since Aug 16, 2026
- 8 terms have ended since Aug 16, 2026
What they patent
The 5 largest of its 200 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Prosthetic Limb with Replaceable Fairing | 15 in force | to Oct 2032 |
| Powder Compositions and Methods of Manufacturing Articles Therefrom | 5 in force | to May 2030 |
| Inks for 3D Printing Having Low Print Through Depth | 4 in force | to Jun 2039 |
| Three Dimensional Printing System with Improved Machine Architecture | 4 in force | to May 2038 |
| Methods, Devices, and Systems for the Fabrication of Materials and Tissues Utilizing Electromagnetic Radiation | 4 in force | to Aug 2035 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,528,374 | Sensing Apparatus Having Optical Assembly That Collimates Emitted Light for Detection In force · High confidence | In force | High confidence | |
| US 7,569,174 | Controlled Densification of Fusible Powders in Laser Sintering In force · High confidence | In force | High confidence | |
| US 7,906,061 | Bubble-Free Cross-Sections for Use in Solid Imaging In force · High confidence | In force | High confidence | |
| US 8,185,229 | Apparatus and Methods for Handling Materials in a 3-D Printer In force · Medium confidence | In force | Medium confidence | |
| US 7,621,733 | Rapid Prototyping and Manufacturing System and Method In force · High confidence | In force | High confidence | |
| US 7,585,450 | Rapid Prototyping and Manufacturing System and Method In force · High confidence | In force | High confidence | |
| US 7,648,664 | Clamped Quantized Feed System for Solid Freeform Fabrication In force · High confidence | In force | High confidence | |
| US 7,520,740 | Rapid Prototyping and Manufacturing System and Method In force · High confidence | In force | High confidence | |
| US 8,465,689 | Elevator and Method for Tilting Solid Image Build Platform for Reducing Air Entrainment and for Build Release In force · High confidence | In force | High confidence | |
| US 9,782,274 | Method for Creating a Design for a Replaceable Fairing In force · Medium confidence | In force | Medium confidence |
Also on record, not counted in the 278: 22 patents in force now held by others · 207 patents ended · 42 applications pending · 119 applications abandoned. List them
Sources and methods
Compiled from USPTO application file histories, grants and recorded assignments, with the company's own names reviewed by hand. How this record was built
Portfolio grouped automatically from ownership conveyances to the names matched to this company, usually every name that begins with its own, so it counts patents an affiliate holds; each list row names the holder of record. Security interests are excluded and ambiguous records are not reviewed by hand.
Fee due within 90 days marks a patent with a maintenance fee due within 90 days of the date this page was computed and not yet recorded paid, so it can end earlier than the bar shows. A fee left unpaid ends the patent at the close of the six month grace period that follows its due date, not on the due date itself. It is not a prediction that the fee will be missed.
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.