The Patent Finder
CO

Corestreet, Ltd.

Filings on record here from 2001, where this site's data begins
OverviewNotableFeesChangesPatent listSources & methods

0 patents currently held, every record listed here

5 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.
4 more records may belong here and await a decision; they are not counted.

This portfolio holds none of the 5 US patents in force on its record. from the record

Of the 5 now held by other companies, 5 name Assa Abloy AB as their current owner. Each row says so.

Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
0
Ending by 2030
none
Next term end

When these terms end

Each bar runs from grant to computed term end. 2011 to 2030.
US 7,966,487 Communication-Efficient Real Time Credentials for Ocsp and Distributed Ocsp Jan 14, 2027
US 8,261,319 Logging Access Attempts to an Area Mar 31, 2027
US 8,707,030 Distributed delegated path discovery and validation Sep 14, 2027
US 9,092,016 Universal Validation Module for Access Control Systems Oct 29, 2029
US 8,099,603 Secure Id Checking May 18, 2030
20152019202320272030
Every computed term in this portfolio is shown above.Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know

Notable patents

Ranked by citations and family size, against patents of the same kind granted the same year. How we rank
None of the currently held patents qualifies as notable.

Formerly held, still cited

Notable
The most cited patent in this portfolio, cited by 68 later US patents, top 10% of utility patents granted in 2012 in our data. Protection runs to 2027.
now held by Assa Abloy AB
Ends Mar 2027 · High confidence
Also notable
Renewed at every maintenance window since the 2012 grant; no more fees are due before its term ends in 2030.
now held by Assa Abloy AB
Ends May 2030 · High confidence
Also notable
Granted 2015 and renewed at every maintenance window due so far. Protection runs to 2029. A terminal disclaimer caps this term to an earlier patent's.
now held by Assa Abloy AB
Ends Oct 2029 · High confidence

Fee deadlines

No maintenance fee falls due on this company's record before Nov 10, 2027.

Recent changes

Nothing was recorded against this company's patents in the last 90 days.

Patents held now

Soonest term end first.
Also on record: 5 patents in force now held by others · 18 patents ended · 5 applications abandoned. List them

Sources and methods

Compiled from USPTO application file histories, grants and recorded assignments, with the company's own names reviewed by hand. How this record was built
Portfolio grouped automatically from ownership conveyances to the names matched to this company, usually every name that begins with its own, so it counts patents an affiliate holds; each list row names the holder of record. Security interests are excluded and ambiguous records are not reviewed by hand.
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
11 computed term dates come from a chain with an unresolved parent. A continuity parent has not yet been fetched from USPTO's records. The term is dated from this application's own claim; no earlier date is assumed until the parent is resolved.
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