The Patent Finder

Ionblox, Inc.

53 patents currently held · Updated Nov 14, 2026
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.

Previously recorded as Zenlabs Energy, Inc. (to 2022)

8
Ending by 2030
Apr 2029
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 Nov 14, 2026
    The maintenance fee for Battery cell engineering and design to reach high energy (US 10,290,871) comes due Nov 14, 2026. Unpaid by May 14, 2027, it lapses early.
  • 1 fee due Dec 30, 2026
    The maintenance fee for Mixed phase lithium metal oxide compositions with desirable battery performance (US 9,070,489) comes due Dec 30, 2026. Unpaid by Jun 30, 2027, it lapses early.
  • 1 fee due Jan 14, 2027
    The maintenance fee for Battery packs for vehicles and high capacity pouch secondary batteries for incorporation into compact battery packs (US 9,083,062) comes due Jan 14, 2027. Unpaid by Jul 14, 2027, it lapses early.
  • 1 fee due Feb 28, 2027
    The maintenance fee for Electrodes with silicon oxide active materials for lithium ion cells achieving high capacity, high energy density and long cycle life performance (US 11,742,474) comes due Feb 28, 2027. Unpaid by Aug 30, 2027, it lapses early.
  • 2 fees due Mar 10 to 22, 2027 · next Mar 10
  • 2 fees due Apr 13 to 20, 2027 · next Apr 13
  • 1 fee due May 17, 2027
    The maintenance fee for High capacity anode materials for lithium ion batteries (US 9,190,694) comes due May 17, 2027. Unpaid by Nov 17, 2027, it lapses early.
  • 2 fees due Aug 4 to 6, 2027 · next Aug 4
  • 1 fee due Oct 30, 2027
    The maintenance fee for Lithium Ion Cells with High Performance Electrolyte and Silicon Oxide Active Materials Achieving Very Long Cycle Life Performance (US 11,973,178) comes due Oct 30, 2027. Unpaid by May 1, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

Nothing was recorded against this company's patents in the last 90 days.

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.
PatentTitleStatus Expires Confidence
US 8,673,490High energy lithium ion batteries with particular negative electrode compositions
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,187,752High energy lithium ion secondary batteries
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,277,974High energy lithium ion batteries with particular negative electrode compositions
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,741,485Layer-layer lithium rich complex metal oxides with high specific capacity and excellent cycling
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,166,222Lithium ion batteries with supplemental lithium
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,923,195Lithium ion batteries with supplemental lithium
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,380,883Method of forming negative electrode active material, with lithium preloading
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,003,068High capacity anode materials for lithium ion batteries
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,765,306High voltage battery formation protocols and control of charging and discharging for desirable long term cycling performance
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,465,873Positive electrode materials for high discharge capacity lithium ion batteries
In force
 · From the USPTO record
In forceFrom the USPTO record
10 of 53 patents shown.
Pro members see all 53.
Pro members: see all 53 patents
Also on record, not counted in the 53: 2 lapsed for an unpaid fee · 1 surrendered on reissue. 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.

2 pending

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