The Patent Finder

R & D Tool & Engineering Co.

20 patents currently held · Updated Nov 14, 2026
2 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.

3
Ending by 2030
May 2028
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 Mar 15, 2027
    The maintenance fee for Injection blow molding system with enhanced parison mold configuration (US 9,132,581) comes due Mar 15, 2027. Unpaid by Sep 15, 2027, 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 7,704,069Injection molding apparatus having swiveling nozzles
In force
 · From the USPTO record
In forceFrom the USPTO record
US 7,771,189Injection molding apparatus with replaceable gate insert
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,352,492Injection blow molding system with enhanced parison mold configuration
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,714,965Injection nozzle with enhanced heat transfer characteristics
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,132,581Injection blow molding system with enhanced parison mold configuration
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,475,157Injection nozzle with enhanced heat transfer characteristics
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,523,556Injection blow molding system with enhanced parison body mold configuration
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,562,334Injection blow molding system with enhanced parison neck mold configuration
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,512,028Injection blow molding system with enhanced supply of heat transfer fluid to parison molds
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,512,625Injection blow molding system with enhanced heat transfer channel configuration
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 patents in force now held by others · 4 lapsed for an unpaid fee · 11 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.

3 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