Also listed on Geomagic, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Dec 17, 2027 · High confidence
20-year base term ended Jun 23, 2026
Filed Jun 23, 2006 as application 11/426,094 · Granted Aug 23, 2011
Base term plus 542 days of patent term adjustment (USPTO delay)
Today
2006
2027
Clock starts
Jun 23, 2006
Jun 23, 2006
Term ends
Dec 17, 2027
Dec 17, 2027
Granted
Aug 23, 2011
Aug 23, 2011
base term
patent term adjustment
fee events
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
542
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
3 of 3
Maintenance fees paid
Three maintenance fees fall due, at 3.5, 7.5 and 11.5 years from grant. This counts the ones the record shows paid.
2
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
This patent's term runs 542 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. Confidence: High. from the record
How we calculated this date
One row per rule, each showing its own input and what it did to the date. A step we could not verify says so instead of resolving itself.
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Jun 23, 2006, when this application, 11/426,094, was filed | Jun 23, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +542 days, USPTO patent term adjustment record | Dec 17, 2027 | High confidence |
| Terminal disclaimer cap | None on record | no cap applied | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Dec 17, 2027 | High confidence |
This family
| US 6,853,373 | Term ended Jan 2023 | Jan 2023 |
| US 8,004,517 | this patent Dec 2027 | Dec 2027 |
The applications whose file history this site holds. The family may have others.
Assignments
Assignment documents as recorded at the USPTO, oldest first, with the reel and frame each was recorded at. A recorded assignment is a filed document, not a statement of current ownership, and the absence of a later one is not evidence that the last one still stands.
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Aug 10, 2006 Reel 18084, frame 53 | Edelsbrunner, Herbert; Facello, Michael; Gloth, Tobias; Terek, Zsolt; Varady, Tamas | Geomagic, Inc. | Assignment of Assignor's Interest |
| Mar 12, 2013 Reel 29971, frame 482 | Geomagic, Inc. | 3D Systems, Inc. | Assignment of Assignor's Interest |
| Feb 27, 2019 Reel 48456, frame 17 | 3D Systems, Inc. | HSBC Bank USA, National Association, as Administrative Agent | Security Interest |
| Aug 26, 2021 Reel 57651, frame 374 | HSBC Bank USA, National Association | 3D Systems, Inc. | Release of Security Interest |
| Oct 2, 2025 Reel 72448, frame 979 | 3D Systems Corporation; 3D Systems, Inc. | Hexagon Manufacturing Intelligence, Inc. | Assignment of Assignor's Interest |
Sources
Google Patents · The patent document at USPTO · Assignment records at USPTO
USPTO account required: This application in Patent Center · USPTO's maintenance fee lookup
Maintenance fee events come from USPTO's own fee records. Its fee lookup asks for the patent number and the application number.
What's changing
Dec 2027
Term ends Dec 17, 2027. No further fees fall due before then
Note
The 542 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
29
later US patents cite this one
That is top 25% of utility patents granted in 2011 in our data, the only group it is compared against.
How we rank
Every date shows its work: the base term, any term adjustment or extension, any disclaimer cap, and the maintenance fee record, each with a confidence tier. How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.