The Patent Finder

Koolspan, Inc.

10 patents currently held · Updated Nov 14, 2026
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
6
Ending by 2030
Jun 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 Dec 16, 2026
    The maintenance fee for Systems and methods for secure voice communications (US 9,059,971) comes due Dec 16, 2026. Unpaid by Jun 16, 2027, it lapses early.
  • 1 fee due Nov 10, 2027
    The maintenance fee for System for and method of remote secure backup (US 9,338,005) comes due Nov 10, 2027. Unpaid by May 10, 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.

Showing 1 to 10 of 10

PatentTitleStatus Expires Confidence
US 7,913,085System and method of per-packet keying
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,345,875System and method of creating and sending broadcast and multicast data
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,008,312System and method of creating and sending broadcast and multicast data
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,548,002Systems and methods for adaptive multi-rate protocol enhancement
In force
 · From the USPTO record
In forceFrom the USPTO record
US 7,886,146Network cryptography system and method
In force
 · From the USPTO record
In forceFrom the USPTO record
US 7,907,735System and method of creating and sending broadcast and multicast data
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,338,005System for and method of remote secure backup
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,059,971Systems and methods for secure voice communications
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,555,068Secure Mobile Telephony
In force
 · High confidence
In forceHigh confidence
US 7,827,409Remote secure authorization
In force
Term ended Oct 24, 2026 · From the USPTO record
In forceTerm ended Oct 24, 2026From the USPTO record
Also on record, not counted in the 10: 8 lapsed for an unpaid fee · 12 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.

1 abandoned · 1 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