The Patent Finder

Angiochem Inc.

5 patents currently held · Updated Nov 14, 2026
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
3
Ending by 2030
May 2030
Next term end

When these terms end

Held patents by the year their term ends
20262027202820292030203120322033203420352036203720382039204020412042204320442045

Fee deadlines

Maintenance fees fall due 3.5, 7.5 and 11.5 years after grant. A missed fee ends a patent at the end of the six month grace period that follows, not on the due date.
  • 1 fee due Apr 20, 2027
    The maintenance fee for Multimeric peptide conjugates and uses thereof (US 9,161,988) comes due Apr 20, 2027. Unpaid by Oct 20, 2027, it lapses early.
  • 1 fee due Jun 29, 2027
    The maintenance fee for Method for Transporting a Compound Across the Blood-Brain Barrier (US 9,221,867) comes due Jun 29, 2027. Unpaid by Dec 29, 2027, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

  • 1 term has ended since Aug 16, 2026

Patents held now

Soonest term end first. Each date below is computed on that patent's own page, which shows the rule, the adjustments and the fee history it was derived from.

Showing 1 to 5 of 5

PatentTitleStatus Expires Confidence
US 8,710,013Pharmaceutical compositions of paclitaxel, paclitaxel analogs or paclitaxel conjugates and related methods of preparation and use
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,969,310Potentiation of Anticancer Agents
In force
 · Medium confidence
In forceMedium confidence
US 9,221,867Method for Transporting a Compound Across the Blood-Brain Barrier
In force
 · High confidence
In forceHigh confidence
US 9,161,988Multimeric peptide conjugates and uses thereof
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,980,892Methods for the Treatment of Leptomeningeal Carcinomatosis
In force
 · High confidence
In forceHigh confidence
Also on record, not counted in the 5: 10 lapsed for an unpaid fee · 2 ended at full term. List them

Sources and methods

Compiled from the USPTO record, grants, published applications and recorded assignments, not yet reviewed by hand. How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.

Published applications

US patent applications published under this name that have not become patents. An application is published about eighteen months after its earliest filing; one that has not been published is in no public record.

4 abandoned · 18 no status recorded

List them

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