Also listed on Quantum Materials Corp., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Nov 8, 2027 · High confidence
20-year base term ends Nov 8, 2027
Held by Quantum Materials Group Inc.
Filed Aug 5, 2009 as application 12/515,706 · Granted Nov 16, 2010
Base term, 20 years from filing
Today
2007
2027
Clock starts
Nov 8, 2007
Nov 8, 2007
Term ends
Nov 8, 2027
Nov 8, 2027
Granted
Nov 16, 2010
Nov 16, 2010
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.
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 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: 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 8, 2007, when application PCT/EP2007/009677, the earliest non-provisional in its chain, was filed (this one was filed Aug 5, 2009) | Nov 8, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High 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 | Nov 8, 2027 | High confidence |
This family
| US 7,833,506 | this patent Nov 2027 | Nov 2027 |
1 of 2 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 |
|---|---|---|---|
| Aug 5, 2009 Reel 23055, frame 715 | Rauscher, Frank, DR.; Haverkamp, Verena, DR.; Henninger, Bjorn, DR.; Mleczko, Leslaw, DR. | Bayer Technology Services GmbH | Assignment of Assignor's Interest |
| Sep 5, 2013 Reel 31157, frame 347 | Bayer Technology Services GmbH | Bayer Intellectual Property GmbH | Assignment of Assignor's Interest |
| Feb 25, 2015 Reel 35090, frame 960 | Bayer Intellectual Property GmbH | Quantum Materials Corporation | Purchase Agreement |
| Mar 17, 2015 Reel 35179, frame 864 | Bayer Intellectual Property GmbH | Quantum Materials Corporation | Assignment of Assignor's Interest |
| Feb 14, 2020 Reel 51824, frame 572 | Quantum Materials Corp. | Quantum Materials Vertical Technologies, LLC | Security Interest |
| Jan 17, 2024 Reel 66150, frame 228 | Quantum Materials Corp. | Howieco International Inc. | Assignment of Assignor's Interest |
| Apr 25, 2024 Reel 67230, frame 1 | Quantum Materials Corp. | Marshack, Richard A., Esq. | Assignment of Assignor's Interest |
| May 23, 2024 Reel 67527, frame 425 | Quantum Materials Corp. | Richard A. Marshack, in His Capacity as Receiver of the Receivership Estate of Quantum Materials Corp., a Nevada Corporation | Corrective Assignment to Correct the the Name of the Receiving Party from Richard a. Marshack to Richard a, Marshack, in His Capacity as Receiver of the Receivership Estate of Quantum Marterials Corp., a Navada Corporation Previously Recorded at Reel: 67230 Frame: 1. Assignor(S) Hereby Confirms the Assignment. |
| Oct 16, 2024 Reel 68908, frame 495 | Richard A. Marshack, in His Capacity as Receiver of the Receivership Estate of Quantum Materials Corp., a Nevada Corporation | MR. John Patrick Lowe in His Capacity as Chapter 7 Trustee Appointed by the United States Bankruptcy Court for the Western District of Texas | Assignment of Assignor's Interest |
| Jan 24, 2025 Reel 69992, frame 187 | Quantum Materials Corporation | Trimar Domestic Inc. | Assignment of Assignor's Interest |
| Jan 24, 2025 Reel 69992, frame 381 | Quantum Materials Vertical Technologies, LLC | Quantum Materials Corp. | Release of Security Interest |
| Jan 24, 2025 Reel 70005, frame 428 | Trimar Domestic Inc. | Quantum Materials Group Inc. | Change of Name |
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
Nov 2027
Term ends Nov 8, 2027. No further fees fall due before then
Citations
8
later US patents cite this one
That is below the median of utility patents granted in 2010 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.