Term ends Aug 5, 2029 · High confidence
20-year base term ends May 22, 2029
Filed Jul 11, 2012 as application 13/546,059 · Granted Apr 22, 2014
Base term plus 75 days of patent term adjustment (USPTO delay)
Today
2009
2029
Clock starts
May 22, 2009
May 22, 2009
Term ends
Aug 5, 2029
Aug 5, 2029
Granted
Apr 22, 2014
Apr 22, 2014
base term
patent term adjustment
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
75
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 8,242,928, to Aug 5, 2029. The term already ends on or before that date, so the cap shortened nothing.
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 runs 75 days past its 20-year base term on prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 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 May 22, 2009, when application 12/470,842, the earliest non-provisional in its chain, was filed (this one was filed Jul 11, 2012) | May 22, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +75 days, USPTO patent term adjustment record | Aug 5, 2029 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,242,928) | resolves to Aug 5, 2029, no earlier than this term, so no change | 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 5, 2029 | High confidence |
This family
| US 8,242,928 | In force Aug 2030 | Aug 2030 |
| US 8,704,677 | this patent Aug 2029 | Aug 2029 |
| US 9,133,707 | In force May 2029 | May 2029 |
| US 9,422,808 | In force May 2029 | May 2029 |
| US 9,951,610 | In force May 2029 | May 2029 |
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 |
|---|---|---|---|
| Apr 19, 2017 Reel 42052, frame 57 | Martin Scientific LLC | Baker Hughes Incorporated | Assignment of Assignor's Interest |
| Sep 24, 2018 Reel 46948, frame 459 | Prammer, Manfred G. | Martin Scientific LLC | Assignment of Assignor's Interest |
| Dec 14, 2018 Reel 47778, frame 861 | Baker Hughes Oilfield Operations LLC | BHGE Ventures & Growth LLC | Nunc Pro Tunc Assignment |
| Jan 22, 2019 Reel 48093, frame 118 | BHGE Ventures & Growth, LLC | Nextstream Wired Pipe, LLC | Assignment of Assignor's Interest |
| Feb 15, 2019 Reel 48356, frame 318 | Baker Hughes Incorporated | Baker Hughes, a GE Company, LLC | Change of Name |
| Mar 5, 2019 Reel 48504, frame 382 | Baker Hughes, a GE Company, LLC | Baker Hughes Oilfield Operations LLC | Assignment of Assignor's Interest |
| Apr 25, 2019 Reel 49008, frame 318 | BHGE Ventures & Growth, LLC | Nextstream Wired Pipe, LLC | Corrective Assignment to Correct the Name of the Assignee on Page 2 Above Signature Previously Recorded at Reel: 048093 Frame: 0118. Assignor(S) Hereby Confirms the Assignment. |
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 2029
Term ends Aug 5, 2029. No further fees fall due before then
Note
The 75 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 8,242,928, ends no earlier than this term, so it caps nothing.
Citations
60
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.