Collateral for a security interest recorded May 22, 2019 (Bspace Investments Limited).
Term ends Jan 10, 2030 · High confidence
20-year base term ended May 8, 2026
Held by Zspace, Inc.
Filed May 8, 2006 as application 11/429,829 · Granted Mar 15, 2011
Base term plus 1343 days of patent term adjustment (USPTO delay)
Today
2006
2030
Clock starts
May 8, 2006
May 8, 2006
Term ends
Jan 10, 2030
Jan 10, 2030
Granted
Mar 15, 2011
Mar 15, 2011
base term
patent term adjustment
fee events
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
1,343
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.
4
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 1343 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 May 8, 2006, when this application, 11/429,829, was filed | May 8, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1343 days, USPTO patent term adjustment record | Jan 10, 2030 | 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 | Jan 10, 2030 | High confidence |
This family
| US 7,907,167 | this patent Jan 2030 | Jan 2030 |
| US 8,717,423 | In force Oct 2027 | Oct 2027 |
| US 9,292,962 | Term ended Sep 2026 | Sep 2026 |
| US 9,684,994 | Term ended May 2026 | May 2026 |
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 27, 2007 Reel 19749, frame 765 | Vesely, Michael A.; Clemens, Nancy L. | Infinite Z, Inc. | Assignment of Assignor's Interest |
| Mar 26, 2013 Reel 30114, frame 469 | Infinite Z, Inc. | Zspace, Inc. | Change of Name |
| Jan 2, 2018 Reel 44985, frame 721 | Zspace, Inc. (F/K/A Infinite Z, Inc.) | Runway Growth Credit Fund Inc. | Security Interest |
| May 8, 2019 Reel 49113, frame 898 | Runway Growth Credit Fund Inc. | Zspace, Inc. (F/K/A Infinite Z, Inc.) | Release of Security Interest |
| May 22, 2019 Reel 49259, frame 533 | Zspace, Inc. | Bspace Investments Limited | Security Interest |
| Sep 17, 2021 Reel 57651, frame 222 | Zpace, Inc. | East West Bank | Security Interest |
| Feb 6, 2023 Reel 62640, frame 162 | East West Bank | Zspace, Inc. | Release of Patent Security Agreement |
| Apr 14, 2025 Reel 70826, frame 887 | Zspace, Inc. | 3I, L.P. | Security Interest |
| Oct 15, 2026 Reel 76730, frame 227 | Zspace, Inc. | Vection Technologies Ltd. | Security 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Jan 2030
Term ends Jan 10, 2030. No further fees fall due before then
Note
The 1343 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
43
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.