Collateral for a security interest recorded Apr 23, 2026 (JPMorgan Chase Bank, N.A.).
Term ends Aug 18, 2027 · High confidence
20-year base term ended Nov 23, 2025
Held by LMK Technologies, LLC
Filed Nov 23, 2005 as application 11/286,652 · Granted Mar 2, 2010
Base term plus 633 days of patent term adjustment (USPTO delay)
Today
2005
2027
Clock starts
Nov 23, 2005
Nov 23, 2005
Term ends
Aug 18, 2027
Aug 18, 2027
Granted
Mar 2, 2010
Mar 2, 2010
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
633
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.
3
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 633 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 23, 2005, when this application, 11/286,652, was filed | Nov 23, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +633 days, USPTO patent term adjustment record | Aug 18, 2027 | 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 | Aug 18, 2027 | High confidence |
This family
| US 7,670,086 | this patent Aug 2027 | Aug 2027 |
| Application PCT/US2006/040380 | PCT application no patent term | no patent term |
| US 8,721,216 | Term ended Nov 2025 | Nov 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 |
|---|---|---|---|
| Jan 16, 2006 Reel 17018, frame 623 | Kiest, JR., Larry W.; Betzold, Donald L.; Bartlett, Jason; O'Sullivan, III, Thomas M.; Greek, Raymond L.; Back, Timothy L. | LMK Enterprises, Inc.; O'Sullivan Trenchless Installation Services | Assignment of Assignor's Interest |
| Jan 16, 2006 reel/frame not recorded | Back, Timothy L.; Bartlett, Jason; Greek, Raymond L.; O'Sullivan, III, Thomas M.; Betzold, Donald L.; Kiest, JR., Larry W. | LMK Enterprises, Inc. | Assignment of Assignor's Interest |
| Jan 16, 2006 reel/frame not recorded | Back, Timothy L.; Bartlett, Jason; Greek, Raymond L.; O'Sullivan, III, Thomas M.; Betzold, Donald L.; Kiest, JR., Larry W. | O'Sullivan Trenchless Installation Services | Assignment of Assignor's Interest |
| Jul 17, 2012 Reel 28571, frame 118 | LMK Enterprises, Inc. | LMK Technologies, LLC | Assignment of Assignor's Interest |
| Apr 24, 2019 Reel 48991, frame 468 | Perma-Liner Industries, LLC; Action Products Marketing Corp.; LMK Technologies, LLC | Ares Capital Corporation., As Collateral Agent | Grant of Security Interest in Patent Rights |
| Nov 1, 2021 Reel 58598, frame 447 | Action Products Marketing, LLC; LMK Technologies LLC; Moray Group, LLC; Perma-Liner Industries, LLC; Pipe Lining Supply Corporation | Adams Street Credit Advisors LP | Security Interest |
| Nov 2, 2021 Reel 58001, frame 984 | Ares Capital Corporation, As Collateral Agent | Perma-Liner Industries, LLC; Action Products Marketing Corp.; LMK Technologies, LLC | Release of Security Interest |
| Nov 2, 2021 reel/frame not recorded | Ares Capital Corporation, As Collateral Agent | Perma-Liner Industries, LLC | Release of Security Interest |
| Nov 2, 2021 reel/frame not recorded | Ares Capital Corporation, As Collateral Agent | Action Products Marketing Corp. | Release of Security Interest |
| Nov 2, 2021 reel/frame not recorded | Ares Capital Corporation, As Collateral Agent | LMK Technologies, LLC | Release of Security Interest |
| Feb 20, 2026 Reel 74946, frame 416 | Adams Street Credit Advisors LP | Action Products Marketing, LLC; LMK Technologies, LLC; Moray Group, LLC; Perma-Liner Industries, LLC; Pipe Lining Supply Corporation | Release of Security Interest |
| Feb 20, 2026 reel/frame not recorded | Adams Street Credit Advisors LP | Action Products Marketing, LLC | Release of Security Interest |
| Feb 20, 2026 reel/frame not recorded | Adams Street Credit Advisors LP | LMK Technologies, LLC | Release of Security Interest |
| Feb 20, 2026 reel/frame not recorded | Adams Street Credit Advisors LP | Moray Group, LLC | Release of Security Interest |
| Feb 20, 2026 reel/frame not recorded | Adams Street Credit Advisors LP | Perma-Liner Industries, LLC | Release of Security Interest |
| Feb 20, 2026 reel/frame not recorded | Adams Street Credit Advisors LP | Pipe Lining Supply Corporation | Release of Security Interest |
| Apr 23, 2026 Reel 75463, frame 713 | Inframark, LLC; Ina Acquisition Corp.; Underground Solutions, Inc.; LMK Technologies, LLC; BLD Services, LLC; Perma-Liner Industries, LLC | JPMorgan Chase Bank, N.A., as Administrative Agent | 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
Aug 2027
Term ends Aug 18, 2027. No further fees fall due before then
Note
The 633 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
37
later US patents cite this one
That is top 25% 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.