The Patent Finder

Nisshin Engineering Inc.

20 patents currently held · Updated Nov 14, 2026
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
5
Ending by 2030
May 2027
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 Jan 4, 2027
    The maintenance fee for Silver fine particle production method and silver fine particles (US 11,691,200) comes due Jan 4, 2027. Unpaid by Jul 6, 2027, it lapses early.
  • 1 fee due Mar 17, 2027
    The maintenance fee for Mixing apparatus for mixing powder having liquid repellent property and liquid (US 10,413,873) comes due Mar 17, 2027. Unpaid by Sep 17, 2027, it lapses early.
  • 1 fee due Apr 24, 2027
    The maintenance fee for Copper Microparticles (US 11,798,707) comes due Apr 24, 2027. Unpaid by Oct 25, 2027, it lapses early.
  • 1 fee due May 26, 2027
    The maintenance fee for Method of producing sub-stoichiometric titanium oxide fine particles (US 10,486,981) comes due May 26, 2027. Unpaid by Nov 26, 2027, it lapses early.
  • 1 fee due Jun 1, 2027
    The maintenance fee for Rotary agitation type heat treatment apparatus (US 9,200,844) comes due Jun 1, 2027. Unpaid by Dec 1, 2027, it lapses early.
  • 1 fee due Nov 3, 2027
    The maintenance fee for Method of grinding powder (US 9,327,288) comes due Nov 3, 2027. Unpaid by May 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 7,582,135Process for Producing Ultrafine Particles
In force
 · High confidence
In forceHigh confidence
US 7,727,497Method for Producing Particles, Particles, and Sintered Body
In force
 · High confidence
In forceHigh confidence
US 7,828,999Process and apparatus for producing fine particles
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,491,696Ultrafine alloy particles, and process for producing the same
In force
 · From the USPTO record
In forceFrom the USPTO record
US 7,981,190Ultrafine alloy particles, and process for producing the same
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,960,027Method for classifying powder
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,327,288Method of grinding powder
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,751,769Method for production of titanium carbide nanoparticles
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,200,844Rotary agitation type heat treatment apparatus
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,020,108Method for producing magnetic particles, magnetic particles, and magnetic body
In force
 · From the USPTO record
In forceFrom the USPTO record
10 of 20 patents shown.
Pro members see all 20.
Pro members: see all 20 patents
Also on record, not counted in the 20: 2 lapsed for an unpaid fee · 19 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.

2 pending · 1 abandoned · 9 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