Collateral for a security interest recorded Jun 9, 2022 (Goldman Sachs Bank USA).
Term ended Oct 12, 2025 · High confidence
20-year base term ended Oct 12, 2025
Held by Bakelite UK Holding Ltd.
Filed Dec 14, 2007 as application 11/956,662 · Granted Aug 2, 2011
Base term plus 663 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
Term ended Oct 12, 2025
2005
2026
Clock starts
Oct 12, 2005
Oct 12, 2005
Term ended
Oct 12, 2025
Oct 12, 2025
Granted
Aug 2, 2011
Aug 2, 2011
base term
after the term ends
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
663
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 7,323,534.
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 663 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. All three maintenance fees were paid, so no fee lapse ended it. 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 Oct 12, 2005, when application 11/248,105, the earliest non-provisional in its chain, was filed (this one was filed Dec 14, 2007) | Oct 12, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +663 days, USPTO patent term adjustment record | Aug 6, 2027 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 7,323,534) | capped to Oct 12, 2025 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 3 of 3 maintenance fees paid | term ended | High confidence |
| Computed term end | The steps above, in order | Oct 12, 2025 | High confidence |
This family
| US 7,323,534 | Term ended Oct 2025 | Oct 2025 |
| US 7,989,575 | this patent Oct 2025 | Oct 2025 |
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 |
|---|---|---|---|
| Dec 14, 2007 Reel 20248, frame 495 | Arbuckle, Stephen W. | Hexion Specialty Chemicals, Inc. | Assignment of Assignor's Interest |
| Jan 29, 2010 Reel 23963, frame 38 | Hexion Specialty Chemicals, Inc.; Borden Chemical Foundry, LLC; Borden Chemical Investments, Inc.; Hexion U.S. Finance Corp.; HSC Capital Corporation; Lawter International Inc.; Borden Chemical International, Inc.; Oilfield Technology Group, Inc.; Hexion Ci Holding Company (China) LLC | Wilmington Trust Fsb, As Collateral Agent | Security Interest |
| Feb 5, 2010 Reel 23905, frame 451 | Hexion LLC; Hexion Specialty Chemicals, Inc.; Borden Chemical Foundry, LLC; Borden Chemical Investments, Inc.; Hexion U.S. Finance Corp.; HSC Capital Corporation; Lawter International Inc.; Borden Chemical International, Inc.; Oilfield Technology Group, Inc.; Hexion Ci Holding Company (China) LLC | JPMorgan Chase Bank, N.A., as Administrative Agent | Security Agreement |
| Aug 3, 2011 Reel 26693, frame 854 | Hexion Specialty Chemicals, Inc. | Momentive Specialty Chemicals Inc. | Change of Name |
| Mar 28, 2013 Reel 30111, frame 21 | Jpmorgan Chase Bank, N.a. | Momentive Specialty Chemicals Inc. (F/K/A Hexion Specialty Chemicals, Inc.) | Termination and Release of Security Interest in Patent Rights |
| Apr 3, 2013 Reel 30146, frame 946 | Momentive Specialty Chemicals Inc. | Wilmington Trust, National Association | Patent Security Agreement |
| Apr 3, 2013 Reel 30146, frame 970 | Momentive Specialty Chemicals Inc. | Jpmorgan Chase Bank, N.a. | Patent Security Agreement |
| Feb 3, 2015 Reel 34882, frame 280 | Momentive Specialty Chemicals Inc. | Hexion Inc. | Change of Name |
| Feb 13, 2017 Reel 41693, frame 888 | Hexion Inc. | Wilmington Trust, National Association, as Collateral Agent | Security Interest |
| Feb 23, 2017 Reel 41793, frame 1 | Wilmington Trust, National Association (Successor by Merger to Wilmington Trust FSB), as Collateral Agent | Hexion Inc. (Formerly Known as Hexion Specialty Chemicals Inc.); Borden Chemical Foundry, LLC; Hexion Investments Inc. (Formerly Known as Borden Chemical Investments, Inc.); Hexion U.S. Finance Corp.; HSC Capital Corporation; Lawter International Inc.; Hexion International Inc. (Formerly Known as Borden Chemical International Inc.); Oilfield Technology Group, Inc.; Hexion Ci Holding Company (China) LLC | Release of Security Interest |
| Feb 23, 2017 reel/frame not recorded | Wilmington Trust, National Association (Successor by Merger to Wilmington Trust FSB), as Collateral Agent | Hexion Inc. (Formerly Known as Hexion Specialty Chemicals Inc.) | Release of Security Interest |
| Feb 23, 2017 reel/frame not recorded | Wilmington Trust, National Association (Successor by Merger to Wilmington Trust FSB), as Collateral Agent | Borden Chemical Foundry, LLC | Release of Security Interest |
| Feb 23, 2017 reel/frame not recorded | Wilmington Trust, National Association (Successor by Merger to Wilmington Trust FSB), as Collateral Agent | Hexion Investments Inc. (Formerly Known as Borden Chemical Investments, Inc.) | Release of Security Interest |
| Feb 23, 2017 reel/frame not recorded | Wilmington Trust, National Association (Successor by Merger to Wilmington Trust FSB), as Collateral Agent | Hexion U.S. Finance Corp. | Release of Security Interest |
| Feb 23, 2017 reel/frame not recorded | Wilmington Trust, National Association (Successor by Merger to Wilmington Trust FSB), as Collateral Agent | HSC Capital Corporation | Release of Security Interest |
| Feb 23, 2017 reel/frame not recorded | Wilmington Trust, National Association (Successor by Merger to Wilmington Trust FSB), as Collateral Agent | Lawter International Inc. | Release of Security Interest |
| Feb 23, 2017 reel/frame not recorded | Wilmington Trust, National Association (Successor by Merger to Wilmington Trust FSB), as Collateral Agent | Hexion International Inc. (Formerly Known as Borden Chemical International Inc.) | Release of Security Interest |
| Feb 23, 2017 reel/frame not recorded | Wilmington Trust, National Association (Successor by Merger to Wilmington Trust FSB), as Collateral Agent | Oilfield Technology Group, Inc. | Release of Security Interest |
| Feb 23, 2017 reel/frame not recorded | Wilmington Trust, National Association (Successor by Merger to Wilmington Trust FSB), as Collateral Agent | Hexion Ci Holding Company (China) LLC | Release of Security Interest |
| Apr 3, 2019 Reel 48788, frame 617 | Wilmington Trust, National Association, as the Prior Collateral Agent | Wilmington Savings Fund Society, FSB, as the Current Collateral Agent | Patent Security Interest Assignment Agreement |
| Jul 9, 2019 Reel 49706, frame 264 | JPMorgan Chase Bank, N.A., as Administrative Agent and Collateral Agent | Hexion Inc. (Formerly Known as Momentive Specialty Chemicals Inc.) | Release of Security Interest in Patents Previously Recorded at Reel/Frame (030146/0970) |
| Jul 12, 2019 Reel 49740, frame 770 | Hexion Inc. | JPMorgan Chase Bank, N.A., as Collateral Agent | Patent Security Interest (ABL) |
| Jul 12, 2019 Reel 49741, frame 425 | Hexion Inc. | JPMorgan Chase Bank, N.A., as Collateral Agent | Patent Security Interest (TERM Loan) |
| May 5, 2021 Reel 56145, frame 957 | Hexion Vad LLC | Goldman Sachs Specialty Lending Group, L.P., as Collateral Agent | Security Interest |
| Aug 30, 2021 Reel 57323, frame 86 | Hexion Inc. | Hexion Vad LLC | Assignment of Assignor's Interest |
| Nov 3, 2021 Reel 58796, frame 363 | Jpmorgan Chase Bank, N.a. | Hexion Inc. | Partial Release of Security Interest |
| Mar 18, 2022 Reel 59435, frame 473 | JPMorgan Chase Bank, N.A., as Collateral Agent | Hexion Inc. | Release of Security Interest in Patents (TERM Loan) Recorded at Reel/Frame 049741/0425 |
| Mar 18, 2022 Reel 59435, frame 490 | JPMorgan Chase Bank, N.A., as Collateral Agent | Hexion Inc. | Release of Security Interest in Patents (ABL) Recorded at Reel/Frame 049740/0770 |
| May 3, 2022 Reel 59926, frame 973 | Hexion Vad LLC | Bakelite LLC | Change of Name |
| May 3, 2022 Reel 60377, frame 699 | Bakelite LLC | Bakelite UK Holding Ltd. | Assignment of Assignor's Interest |
| Jun 9, 2022 Reel 60328, frame 250 | Georgia-Pacific Chemicals LLC; Georgia-Pacific Consumer Products LP; ENERG2 Technologies, Inc.; Koch Agronomic Services LLC; Bakelite UK Holding Ltd.; Surface Tech LLC | Goldman Sachs Bank USA, as Administrative Agent | Security Interest |
| Jun 9, 2022 Reel 60328, frame 327 | Georgia-Pacific Chemicals LLC; Georgia-Pacific Consumer Products LP; ENERG2 Technologies, Inc.; Koch Agronomic Services LLC; Bakelite UK Holding Ltd. | Macquarie Capital Funding LLC, as Administrative Agent | Security Interest |
| Jun 15, 2022 Reel 60209, frame 558 | Goldman Sachs Specialty Lending Group, L.P. | Hexion Vad LLC | Release of Security Interest |
| Jan 23, 2025 Reel 69981, frame 468 | Bakelite Chemicals LLC; Bakelite UK Holding Ltd.; Bakelite GmbH; Bakelite Synthetics UK Limited | Goldman Sachs Bank USA | Security Interest |
| May 12, 2025 Reel 71090, frame 740 | Bakelite Chemicals LLC; Bakelite UK Holding Ltd.; Bakelite GmbH; Bakelite Synthetics UK | Jpmorgan Chase Bank, N.a. | Security Interest |
| May 12, 2025 Reel 71276, frame 379 | Macquarie Capital Funding LLC | Jpmorgan Chase Bank, N.a. | Assignment of Patent and Trademark 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.
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Alerts on its grants, lapses and transfers.
What's changing
Note
The 663 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 7,323,534.
Citations
1
later US patent cites this one
That is below the median 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.