Term ends Sep 27, 2029 · High confidence
20-year base term ended Nov 9, 2026
Held by Leica Microsystems CMS GmbH
Filed Nov 9, 2006 as application 11/595,611 · Granted Oct 25, 2011
Base term plus 1053 days of patent term adjustment (USPTO delay)
Today
2006
2029
Clock starts
Nov 9, 2006
Nov 9, 2006
Term ends
Sep 27, 2029
Sep 27, 2029
Granted
Oct 25, 2011
Oct 25, 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
1,053
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.
This patent's term runs 1053 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 Nov 9, 2006, when this application, 11/595,611, was filed | Nov 9, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1053 days, USPTO patent term adjustment record | Sep 27, 2029 | 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 | Sep 27, 2029 | High confidence |
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 |
|---|---|---|---|
| Nov 9, 2006 Reel 18560, frame 516 | Oh, Seho | Lee, Shih-jong J. | Assignment of Assignor's Interest |
| Apr 27, 2008 Reel 20861, frame 665 | Lee, Shih-Jong J., DR. | Svision LLC | Assignment of Assignor's Interest |
| May 30, 2008 Reel 21020, frame 711 | Svision LLC | Drvision Technologies LLC | Assignment of Assignor's Interest |
| Dec 18, 2020 Reel 54688, frame 328 | Drvision Technologies LLC | Svision LLC | Assignment of Assignor's Interest |
| Mar 16, 2021 Reel 55600, frame 752 | Svision LLC | Leica Microsystems Inc. | Assignment of Assignor's Interest |
| Oct 4, 2021 Reel 57697, frame 440 | Leica Microsystems Inc. | Leica Microsystems CMS GmbH | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Sep 2029
Term ends Sep 27, 2029. No further fees fall due before then
Note
The 1053 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
39
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.