581 patents currently held
25 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.
The next term ends in Jan 2027. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
65
Ending by 2030
Jan 2027
Next term end
388
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 15, 2026 · includes USPTO assignment & status data published Nov 15, 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 Aug 2030 · High confidence
Also notable
Ends Jan 2035 · High confidence
Also notable
Ends Jul 2028 · Medium confidence
Networked Three-Dimensional Printing
US 8,562,324
Cited by 117 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 2030.
Additive Manufacturing with Polyamide Consumable Materials
US 9,592,530
Cited by 69 later US patents, top 5% of utility patents granted in 2017 in our data, and renewed at every maintenance window due so far. Protection runs to 2035.
Solid Freeform Fabrication Using a Plurality of Modeling Materials
US 9,031,680
Cited by 152 later US patents, top 5% of utility patents granted in 2015 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2028.
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.
- 1 fee due Nov 19, 2026The maintenance fee for Substrate-Based Additive Fabrication Process (US 9,034,236) comes due Nov 19, 2026. Unpaid by May 19, 2027, it lapses early.
- 4 fees due Dec 6 to 25, 2026 · next Dec 6
- 8 fees due Jan 4 to 30, 2027 · next Jan 4
- 10 fees due Feb 1 to 27, 2027 · next Feb 1
- 12 fees due Mar 3 to 24, 2027 · next Mar 3
- 12 fees due Apr 1 to 30, 2027 · next Apr 1
- 8 fees due May 3 to 28, 2027 · next May 3
- 20 fees due Jun 3 to 30, 2027 · next Jun 3
- 20 fees due Jul 2 to 30, 2027 · next Jul 2
- 13 fees due Aug 4 to 27, 2027 · next Aug 4
- 11 fees due Sep 3 to 30, 2027 · next Sep 3
- 8 fees due Oct 7 to 30, 2027 · next Oct 7
- 4 fees due Nov 3 to 14, 2027 · next Nov 3
Recent changes
- Sep 15Assignment recorded on 1 record: Worrell, Carin and 1 other to Stratasys, Inc. Recorded Sep 15, 2026, executed Mar 3, 2026. Conveyance as recorded: Assignment of Assignor's Interest. A recorded assignment is a filed document, not a statement of current ownership. Reel 76514, frame 812.
- 13 of the patents on this record were granted since Aug 17, 2026
- 10 terms have ended since Aug 17, 2026
What they patent
The 5 largest of its 388 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Additive Manufacturing with Polyamide Consumable Materials | 12 in force | to Jan 2035 |
| Networked Three-Dimensional Printing | 11 in force | to Mar 2031 |
| Method for Build Separation from a Curing Interface in an Additive Manufacturing Process | 8 in force | to Jun 2040 |
| Three-Dimensional Printer Tool Systems | 6 in force | to Jun 2034 |
| Method of Using Print Head Assembly in Fused Deposition Modeling System | 6 in force | to Mar 2034 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US D673,605 | Print Head In force · High confidence | In force | High confidence | |
| US 7,555,357 | Method for Building Three-Dimensional Objects with Extrusion-Based Layered Deposition Systems In force · High confidence | In force | High confidence | |
| US 9,662,834 | Rapid Production Apparatus with Production Orientation Determination In force · High confidence | In force | High confidence | |
| US 9,417,627 | Method and System for Three-Dimensional Fabrication In force · High confidence | In force | High confidence | |
| US 12,257,783 | Method and System for Three-Dimensional Fabrication In force · High confidence | In force | High confidence | |
| US 10,358,524 | Radiation Curable Resin Composition and Rapid Three Dimensional Imaging Process Using the Same In force · Medium confidence | In force | Medium confidence | |
| US D682,490 | Support Cleaning System In force · High confidence | In force | High confidence | |
| US 7,680,555 | Auto Tip Calibration in an Extrusion Apparatus In force · High confidence | In force | High confidence | |
| US 10,632,678 | Rapid Production Apparatus with Production Orientation Determination In force · High confidence | In force | High confidence | |
| US 11,453,168 | Rapid Production Apparatus with Production Orientation Determination In force · High confidence | In force | High confidence |
Also on record, not counted in the 581: 25 patents in force now held by others · 102 patents ended · 107 applications pending · 69 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.