Also listed on Hultgren Dental Technologies, LLC, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends May 4, 2027 · Medium confidence
20-year base term ends May 4, 2027
Why Medium: A parent in the chain could not be resolved.
Held by Biteworkz LLC
Filed Aug 12, 2009 as application 12/540,233 · Granted May 13, 2014
Base term, 20 years from filing
Today
2007
2027
Clock starts
May 4, 2007
May 4, 2007
Term ends
May 4, 2027
May 4, 2027
Granted
May 13, 2014
May 13, 2014
base term
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
None
Term adjustment
No prosecution delay on this record.
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.
5
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 is its 20-year base term, with no adjustment for prosecution delay. All three maintenance fees are recorded paid; no more fees are due. Confidence: Medium. 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 4, 2007, when application 11/800,430, the earliest non-provisional in its chain, was filed (this one was filed Aug 12, 2009); a parent in its chain could not be resolved (the next row) | May 4, 2027 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | None on file | no change | 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 | May 4, 2027 | Medium confidence |
This family
| US 8,725,465 | this patent May 2027 | May 2027 |
1 of 5 applications in this family shown, earliest filings first. 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 |
|---|---|---|---|
| Oct 7, 2014 Reel 33900, frame 758 | Marshall, Michael C. | Hultgren, Bruce W. | Assignment of Assignor's Interest |
| Oct 29, 2021 Reel 57959, frame 596 | Hultgren, Bruce Willard | Hultgren Dental Technologies, LLC | Assignment of Assignor's Interest |
| Sep 4, 2026 Reel 76371, frame 554 | Hultgren Dental Technologies, LLC | Biteworkz LLC | 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
May 2027
Term ends May 4, 2027. No further fees fall due before then
Citations
82
later US patents cite this one
That is top 10% of utility patents granted in 2014 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.