The Patent Finder
US

Methods for Treating Hyperopia and Presbyopia via Laser Tunneling

US 7,878,204 Lapsed on the fee record
OverviewFamilyAssignmentsSources & methods
Collateral for a security interest recorded Nov 16, 2018 (SWK Funding LLC).

Lapsed Feb 1, 2023 on the fee record · Medium confidence

Why Medium: A terminal disclaimer is on file (approved) with no resolved reference, so the term may end earlier.

Third maintenance fee unpaid; grace period ended.

Filed Apr 24, 2006 as application 11/410,564 · Granted Feb 1, 2011
Base term, 20 years from filing, plus 1090 days of patent term adjustment (USPTO delay)
Today
Lapsed Feb 1, 2023
2006 2029
Clock starts
Apr 24, 2006
No longer in force
Feb 1, 2023
Granted
Feb 1, 2011
Term would have run to
Apr 18, 2029
base term patent term adjustment 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
1,090
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
2 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.
41
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.

Its term would have run to Apr 18, 2029: its 20-year base term plus 1090 days of term adjustment for prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. Confidence: Medium. 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 24, 2006, when this application, 11/410,564, was filedApr 24, 2026High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+1090 days, USPTO patent term adjustment recordApr 18, 2029High confidence
Terminal disclaimer capDisclaimer on file (approved), reference document not resolvedno cap applied, and none guessedMedium confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events2 of 3 maintenance fees paidlapsed Feb 1, 2023High confidence
Computed term endThe steps above, in orderFeb 1, 2023Medium confidence

This family

US 7,261,558Term ended
no later than May 2019
no later than May 2019
US 7,878,204this patent
Feb 2023
Feb 2023
US 7,665,467Lapsed on the fee record
Feb 2022
Feb 2022
US 9,101,377In force
Jan 2028
Jan 2028
US 7,815,630In force
Jul 2027
Jul 2027
US 7,695,469In force
Apr 2027
Apr 2027
Application 11/820,746Abandoned
not computed
not computed
Application 11/890,047Abandoned
not computed
not computed
8 of 41 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
Jul 21, 2006
Reel 18123, frame 38
Van Valen, Marcia AngelaBiolase Technology, Inc.Assignment of Assignor's Interest
Aug 28, 2010
Reel 24900, frame 550
Biolase Technology, Inc.Midcap Financial, LLC, as Agent and as a LenderSecurity Agreement
Sep 30, 2010
Reel 25066, frame 488
Biolase Technology, Inc.; BL Acquisition Corp.; BL Acquisition II Inc.Henry Schein, Inc.Security Agreement
May 16, 2011
Reel 26285, frame 666
Midcap Financial, LLC, Agent and as LenderBiolase Technology, Inc.Security Agreement Payoff
May 9, 2012
Reel 28184, frame 218
Henry Schein, Inc.Biolase Technology, Inc.; BL Acquistion Corp.; BL Acquisition II Inc.Release of Security Interest
May 9, 2012
reel/frame not recorded
Henry Schein, Inc.Biolase Technology, Inc.Release of Security Interest
May 9, 2012
reel/frame not recorded
Henry Schein, Inc.BL Acquistion Corp.Release of Security Interest
May 9, 2012
reel/frame not recorded
Henry Schein, Inc.BL Acquisition II Inc.Release of Security Interest
Nov 20, 2012
Reel 29328, frame 96
Biolase Technology, Inc.Biolase, Inc.Change of Name
Mar 7, 2018
Reel 45514, frame 540
Biolase, Inc.Western Alliance BankSecurity Interest
Nov 10, 2018
Reel 48101, frame 27
Western Alliance BankBiolase, Inc.Release of Security Interest
Nov 16, 2018
Reel 47588, frame 192
Biolase, Inc.SWK Funding LLC, as AgentSecurity Interest
Oct 30, 2019
Reel 50879, frame 223
Biolase, Inc.Pacific Mercantile BankSecurity 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