The Patent Finder

Well Stone Co.

14 patents currently held · Updated Nov 15, 2026
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
1
Ending by 2030
Nov 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 Dec 23, 2026
    The maintenance fee for Tyrosinase inhibitor produced using dried earthworm powder, and method for producing same (US 9,060,958) comes due Dec 23, 2026. Unpaid by Jun 23, 2027, it lapses early.
  • 1 fee due Mar 3, 2027
    The maintenance fee for Tau protein production accelerator, and therapeutic or preventive agent and therapeutic or preventive food composition for diseases caused by tau protein deficiency (US 10,398,740) comes due Mar 3, 2027. Unpaid by Sep 3, 2027, it lapses early.
  • 1 fee due Aug 13, 2027
    The maintenance fee for Method for producing therapeutic agent for skin lesions, and therapeutic agent for skin lesions (US 11,896,625) comes due Aug 13, 2027. Unpaid by Feb 14, 2028, it lapses early.
  • 1 fee due Sep 3, 2027
    The maintenance fee for Tau protein production accelerator, and therapeutic or preventive agent and therapeutic or preventive food composition for diseases caused by tau protein deficiency (US 10,576,108) comes due Sep 3, 2027. Unpaid by Mar 3, 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 8,137,701Method of producing a dry earthworm powder
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,394,417Method of producing a dry earthworm powder
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,511,098Method for producing dry earthworm powder
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,060,958Tyrosinase inhibitor produced using dried earthworm powder, and method for producing same
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,155,012Catecholamine production accelerator, and therapeutic and preventive agent and therapeutic and preventive food composition for diseases caused by catecholamine deficiency
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,576,108Tau protein production accelerator, and therapeutic or preventive agent and therapeutic or preventive food composition for diseases caused by tau protein deficiency
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,398,740Tau protein production accelerator, and therapeutic or preventive agent and therapeutic or preventive food composition for diseases caused by tau protein deficiency
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,266,595Deodorant production method and deodorant
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,077,152Method of producing nasal drop composition by mixing earthworm castings with water
In force
 · From the USPTO record
In forceFrom the USPTO record
US 12,318,410Method for producing therapeutic agent for skin lesions, and therapeutic agent for skin lesions
In force
 · From the USPTO record
In forceFrom the USPTO record
10 of 14 patents shown.
Pro members see all 14.
Pro members: see all 14 patents

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.

1 no status recorded

List them

The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited