The Patent Finder
US

Dual Pump VFD Controlled Motor Electric Fracturing System

US 10,982,521 In force
OverviewFamilyAssignmentsSources & methods
Collateral for a security interest recorded Jul 2, 2024 (Texas Capital Bank).

Term ends Apr 6, 2032 · Low confidence

Filed Aug 23, 2018 as application 16/110,841 · Granted Apr 20, 2021
Base term plus 30 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
20 years from filing
2012 2032
Clock starts
Apr 6, 2012
Term ends
Apr 6, 2032
Granted
Apr 20, 2021
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
30
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 10,718,195.
1 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
38
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 30 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 1 of 2 maintenance fees is paid so far. Confidence: Low. 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.
StepInputDate after this stepConfidence
Base term, 20 years from filingClock starts Apr 6, 2012, when application 13/441,334, the earliest non-provisional in its chain, was filed (this one was filed Aug 23, 2018); a parent in its chain could not be resolved (the next row)Apr 6, 2032High confidence
Continuity chainA parent in the chain could not be resolveddated from this application's own claimMedium confidence
Patent term adjustment+30 days, USPTO patent term adjustment recordMay 6, 2032High confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 10,718,195)capped to Apr 6, 2032High confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events1 of 2 maintenance fees paidIn forceHigh confidence
Further caveats on recordThe record names parents not resolved: 15086829, 13441334Low confidence overallLow confidence
Computed term endThe steps above, in orderApr 6, 2032Low confidence

This family

US 9,366,114In force
Jul 2033
Jul 2033
US 9,140,110In force
Jun 2033
Jun 2033
US 9,121,257In force
Apr 2032
Apr 2032
US 9,103,193In force
Apr 2032
Apr 2032
US 9,475,021In force
Mar 2033
Mar 2033
US 9,475,020In force
Mar 2033
Mar 2033
US 10,227,855In force
Apr 2032
Apr 2032
US 10,221,668In force
Apr 2032
Apr 2032
8 of 38 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.
RecordedAssignorAssigneeConveyance
Jun 11, 2019
Reel 49437, frame 340
Schelske, Eldon; Coli, Todd; 1571322 Alberta, Ltd.Evolution Well ServicesAssignment of Assignor's Interest
Jun 13, 2019
Reel 49457, frame 230
Evolution Well ServicesEvolution Well Services, LLCAssignment of Assignor's Interest
Jun 14, 2019
Reel 49469, frame 774
Evolution Well Services, LLCTyphon Technology Solutions, LLCAssignment of Assignor's Interest
Mar 4, 2022
Reel 59318, frame 911
Typhon Technology Solutions (U.S.), LLCTexas Capital BankSecurity Interest
Mar 7, 2022
Reel 59334, frame 339
Typhon Technology Solutions (U.S.), LLCGoldman Sachs Bank USA, as Collateral AgentSecurity Interest
Mar 7, 2022
Reel 59575, frame 324
Typhon Technology Solutions, LLCTyphon Technology Solutions (U.S.), LLCAssignment of Assignor's Interest
Jul 2, 2024
Reel 68233, frame 375
Typhon Technology Solutions (U.S.), LLCTexas Capital BankSecurity Interest
Jul 9, 2024
Reel 68258, frame 755
Goldman Sachs Bank USATyphon Technology Solutions (U.S.), LLCTermination and Release of Security Interest in Patent Rights
Aug 26, 2024
Reel 68845, frame 863
Goldman Sachs Bank USATyphon Technology Solutions (U.S.), LLCCorrective Assignment to Correct the Correct the Erroneous Document Included in the Termination and Release of Security Interest in Patent Rights Previously Recorded at Reel: 68258 Frame: 755. Assignor(S) Hereby Confirms the Termination and Release of Security Interest in Patent Rignts.
Jul 3, 2025
Reel 71820, frame 601
Typhon Technology Solutions (U.S.), LLCWells Fargo Bank, National Association, as AgentSecurity Interest
Sep 3, 2025
Reel 73151, frame 1
Typhon Technology Solutions (U.S.), LLCWells Fargo Bank, National Association, as AgentCorrective Assignment to Correct the Cover Sheet to Remove Oath/Declaration Option Previously Recorded on Reel 71820 Frame 601. Assignor(S) Hereby Confirms the 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.

The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited