One patent currently held, every record listed here
4 more in force are now held by other companies
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
The next term ends in Dec 2034. from the record
Of the 4 now held by other companies, 4 name CASE360 Limited as their current owner. Each row says so.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
0
Ending by 2030
Dec 2034
Next term end
1
Patent families
When these terms end
Each bar runs from grant to computed term end. 2021 to 2043.
US 11,085,899
Methods and Apparatus for Acoustic Assessment from the Interior of Fluid Conduits
Dec 31, 2034
US 11,965,411
Systems and Methods for Analyzing Casing Bonding in a Well Using Ultrasound Velocity Filtering
Jun 13, 2041
US 11,959,377
Systems and Methods for Analyzing Casing Bonding in a Well Using Radial Sensing
Oct 28, 2041
US 12,282,130
Systems and Methods for Isolation Detection Using a Symmetry Invariant Log
Jun 28, 2043
20262031203620412043
1 pending application: term is not computable until grant.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
Notable patents
Ranked by citations and family size, against patents of the same kind granted the same year. How we rank
Only 1 of the currently held patents qualifies as notable.
Formerly held, still cited
Notable
Ends Jun 2043 · High confidence
Granted 2025. Too new for citation comparison; protection runs to 2043.
now held by CASE360 Limited
Fee deadlines
No maintenance fee falls due on this company's record before Nov 10, 2027.
Recent changes
Nothing was recorded against this company's patents in the last 90 days.
What they patent
Grouped by real patent family, largest first, labeled by the earliest filing in each. No technology classification is inferred from titles.
| Methods and Apparatus for Acoustic Assessment from the Interior of Fluid Conduits | 1 in force | to Dec 2034 |
Patents held now
Soonest term end first.
Showing 1 to 1 of 1
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 11,085,899 | Methods and Apparatus for Acoustic Assessment from the Interior of Fluid Conduits In force · High confidence | In force | High confidence |
Also on record, not counted in the 1: 4 patents in force now held by others · 1 application pending · 3 applications abandoned. List them
Sources and methods
Compiled from USPTO application file histories, grants and recorded assignments, with the company's own names reviewed by hand. How this record was built
Portfolio grouped automatically from ownership conveyances to the names matched to this company, usually every name that begins with its own, so it counts patents an affiliate holds; each list row names the holder of record. Security interests are excluded and ambiguous records are not reviewed by hand.
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.