Ecopro BM Co., Ltd.

72 patents currently held · Updated Nov 15, 2026

3 more in force are now held by other companies

Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.

Recorded under 2 name spellings.

Ending by 2030

Dec 2027

Next term end

When these terms end

5 yrs10 yrs20 yrs

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 Dec 13, 2026
The maintenance fee for Cathode active material of lithium secondary battery (US 11,677,065) comes due Dec 13, 2026. Unpaid by Jun 14, 2027, it lapses early.
3 fees due Jan 9 to 25, 2027 · next Jan 9
3 fees due May 7 to 19, 2027 · next May 7
2 fees due Jun 5 to 30, 2027 · next Jun 5
1 fee due Sep 26, 2027
The maintenance fee for Positive electrode active material and lithium secondary battery comprising the same (US 11,942,635) comes due Sep 26, 2027. Unpaid by Mar 27, 2028, it lapses early.
1 fee due Oct 30, 2027
The maintenance fee for Positive electrode active material and lithium secondary battery comprising the same (US 11,973,212) comes due Oct 30, 2027. Unpaid by May 1, 2028, it lapses early.
1 fee due Nov 7, 2027
The maintenance fee for Positive Electrode Active Material and Lithium Secondary Battery Including the Same (US 11,978,891) comes due Nov 7, 2027. Unpaid by May 8, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

4 of the patents on this record were granted since Aug 17, 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.

Patent	Title	Status	Expires	Confidence
US 7,625,670	Cathode Material for Secondary Batteries with Non-Aqueous Electrolyte, a Process for Preparing the Cathode Material and Lithium Secondary Battery Containing the Same In force Term ends Dec 6, 2027 · High confidence	In force	Term ends Dec 6, 2027	High confidence
US 9,083,044	Method for manufacturing anode active material for lithium secondary battery, anode active material for lithium secondary battery manufactured thereby and lithium secondary battery using same In force Term ends Aug 16, 2032 · From the USPTO record	In force	Term ends Aug 16, 2032	From the USPTO record
US 10,522,823	Cathode active material for lithium secondary battery and lithium secondary battery comprising the same In force Term ends Jan 21, 2035 · From the USPTO record	In force	Term ends Jan 21, 2035	From the USPTO record
US 10,714,740	Cathode Active Material for Lithium Secondary Battery and Lithium Secondary Battery Comprising the Same In force Ends no later than Jan 21, 2035 · Medium confidence	In force	Ends no later than Jan 21, 2035	Medium confidence
US 9,837,661	Cathode active material for lithium secondary battery and lithium secondary battery comprising the same In force Term ends Mar 4, 2035 · From the USPTO record	In force	Term ends Mar 4, 2035	From the USPTO record
US 10,343,105	Air cleaning system In force Term ends Jul 24, 2035 · From the USPTO record	In force	Term ends Jul 24, 2035	From the USPTO record
US 10,483,537	Positive active material and method for producing the same In force Term ends Aug 31, 2035 · From the USPTO record	In force	Term ends Aug 31, 2035	From the USPTO record
US 10,749,205	Method for producing positive active material precursor and positive active material for lithium secondary batteries, exhibiting concentration gradient, and positive active material precursor and positive active material for lithium secondary batteries, exhibiting concentration gradient, produced by same In force Term ends May 17, 2036 · From the USPTO record	In force	Term ends May 17, 2036	From the USPTO record
US 11,502,297	Lithium complex oxide for lithium secondary battery positive active material and method of preparing the same In force Ends no later than Mar 15, 2037 · From the USPTO record	In force	Ends no later than Mar 15, 2037	From the USPTO record
US 11,508,964	Lithium complex oxide for lithium secondary battery positive active material and method of preparing the same In force Ends no later than Mar 15, 2037 · From the USPTO record	In force	Ends no later than Mar 15, 2037	From the USPTO record

10 of 72 patents shown.

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Also on record, not counted in the 72: 3 patents in force now held by others · 2 lapsed for an unpaid fee. 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.

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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.

64 pending · 9 no status recorded

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