BASF Construction Solutions GmbH

13 patents currently held · Updated Nov 14, 2026

35 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 3 name spellings.

Ending by 2030

Apr 2031

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 6, 2026
The maintenance fee for Composition Containing a Semi-Ordered Calcium Silicate Hydrate (US 11,667,569) comes due Dec 6, 2026. Unpaid by Jun 7, 2027, it lapses early.
1 fee due May 5, 2027
The maintenance fee for Method for treating gypsum (US 10,464,851) comes due May 5, 2027. Unpaid by Nov 5, 2027, it lapses early.
1 fee due Sep 12, 2027
The maintenance fee for Spray Drying Method (US 11,926,715) comes due Sep 12, 2027. Unpaid by Mar 13, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

3 terms have 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.

Patent	Title	Status	Expires	Confidence
US 9,005,759	Powdered Composition In force Term ends Apr 23, 2031 · High confidence	In force	Term ends Apr 23, 2031	High confidence
US 9,416,021	Synthesis and use of gypsum seeding material In force Term ends Jun 14, 2033 · From the USPTO record	In force	Term ends Jun 14, 2033	From the USPTO record
US 10,273,188	Powder Composition for Rapid Suspension In force Term ends Mar 21, 2034 · High confidence	In force	Term ends Mar 21, 2034	High confidence
US 10,464,851	Method for treating gypsum In force Term ends May 6, 2034 · From the USPTO record	In force	Term ends May 6, 2034	From the USPTO record
US 9,676,666	Hardening accelerator containing ettringite and calcium silicate hydrate In force Term ends Aug 22, 2034 · From the USPTO record	In force	Term ends Aug 22, 2034	From the USPTO record
US 10,723,656	Construction Chemical Compositions Comprising a Bisulfite Adduct of Glyoxylic Acid In force Term ends Jul 9, 2037 · High confidence	In force	Term ends Jul 9, 2037	High confidence
US 10,815,152	Hydration Control Mixture for Mortar and Cement Compositions In force Term ends Sep 8, 2037 · High confidence	In force	Term ends Sep 8, 2037	High confidence
US 11,667,569	Composition Containing a Semi-Ordered Calcium Silicate Hydrate In force Term ends Sep 9, 2038 · High confidence	In force	Term ends Sep 9, 2038	High confidence
US 11,505,690	Water-Swellable Polymer Particles In force Term ends Sep 16, 2039 · High confidence	In force	Term ends Sep 16, 2039	High confidence
US 11,542,200	Composition for Flowable Fire-Resistant Materials In force Term ends Sep 20, 2039 · High confidence	In force	Term ends Sep 20, 2039	High confidence

10 of 13 patents shown.

Pro members see all 13.

Pro members: see all 13 patents

Also on record, not counted in the 13: 35 patents in force now held by others · 15 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.

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Published applications

Every application published under this name has become a patent.