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ST

Slack Technologies, Inc.

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

12 patents currently held

416 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.

The next term ends in Oct 2037. from the record

Of the 416 now held by other companies, 401 name Salesforce Inc. as their current owner, and 15 more name another party. Each row says which.

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Alerts on its grants, lapses and transfers.
0
Ending by 2030
Oct 2037
Next term end
9
Patent families

When these terms end

Held patents by the year their term ends
20262027202820292030203120322033203420352036203720382039204020412042204320442045
notable patents all others 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: the highest-ranked patents in this portfolio by citations and family size.

Notable patents

Ranked by citations and family size, against patents of the same kind granted the same year. How we rank
Notable
System, Method, and Apparatus for Maintaining and Updating a Common Message User Interface in a Group Based Communication System US 10,331,303
The most cited patent in this portfolio, cited by 26 later US patents, top 10% of utility patents granted in 2019 in our data. Protection runs to 2038.
Ends May 2038 · High confidence Also notable
Encryption Key Management for International Data Residency US 11,757,852
A family of 7 related applications built on the 2023 grant. Protection runs to 2039.
Ends Jun 2039 · High confidence Also notable
System, Method, and Apparatus for Building and Rendering a Message User Interface in a Group-Based Communication System US 10,929,155
Granted 2021. Computed term ends 2039.
Ends Mar 2039 · High confidence

Formerly held, still cited

Notable
Method, Apparatus, and Computer Program Product for Associating an Identifier with One or More Message Communications Within a Group-Based Communication System US 11,595,327
Cited by 45 later US patents, top 1% of utility patents granted in 2023 in our data. Protection runs to 2038.
now held by Salesforce, Inc.
Ends Nov 2038 · High confidence
Also notable
Control for Inviting an Unauthenticated User to Gain Access to Display of Content That Is Otherwise Accessible with an Authentication Mechanism US 8,584,258
Cited by 158 later US patents, top 5% of utility patents granted in 2013 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2028.
now held by Salesforce, Inc.
Ends Jan 2028 · High confidence
Also notable
Method, Apparatus and Computer Program Product for Generating Externally Shared Communication Channels US 10,880,111
Cited by 66 later US patents, top 5% of utility patents granted in 2020 in our data. Protection runs to 2037. A terminal disclaimer caps this term to an earlier patent's.
now held by Salesforce, Inc.
Ends Jul 2037 · High confidence

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 25, 2026
    The maintenance fee for System, Method, and Apparatus for Maintaining and Updating a Common Message User Interface in a Group Based Communication System (US 10,331,303) comes due Dec 25, 2026. Unpaid by Jun 25, 2027, it lapses early.
  • 1 fee due Feb 15, 2027
    The maintenance fee for Systems and Methods for Sharing Content Externally from a Group-Based Communication Platform (US 11,729,228) comes due Feb 15, 2027. Unpaid by Aug 16, 2027, it lapses early.
  • 2 fees due Mar 12 to 26, 2027 · next Mar 12
  • 2 fees due Sep 5 to 10, 2027 · next Sep 5

Which patents, and when each one lapses · Pro

Recent changes

  • 3 of the patents on this record were granted since Aug 16, 2026
  • 5 terms have ended since Aug 16, 2026

What they patent

The 5 largest of its 9 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
System, Method, and Apparatus for Maintaining and Updating a Common Message User Interface in a Group Based Communication System3 in forceto May 2038
Method, Apparatus, and Computer Program Product for Searchable Real-Time Transcribed Audio and Visual Content Within a Group-Based Communication System2 in forceto Dec 2038
Communication Platform Interactive Transcripts1 in forceto Jan 2042
Object Interface for Quick Access to Objects of a Communication Platform1 in forceto Apr 2041
Method, Apparatus, and Computer Program Product for Organizational Telemetry Discovery Within a Group Based Communication System1 in forceto Mar 2041

Patents held now

Soonest term end first.
PatentTitleStatusExpiresConfidence
US 11,923,998Channeling Messaging Communications in a Selected Group-Based Communication Interface
In force
 · Medium confidence
In forceMedium confidence
US 10,331,303System, Method, and Apparatus for Maintaining and Updating a Common Message User Interface in a Group Based Communication System
In force
 · High confidence
In forceHigh confidence
US 10,585,562System, Method, and Apparatus for Maintaining and Updating a Common Message User Interface in a Group Based Communication System
In force
 · High confidence
In forceHigh confidence
US 10,852,916System, Method, and Apparatus for Maintaining and Updating a Common Message User Interface in a Group Based Communication System
In force
 · High confidence
In forceHigh confidence
US 12,406,669Method, Apparatus, and Computer Program Product for Searchable Real-Time Transcribed Audio and Visual Content Within a Group-Based Communication System
In force
 · Low confidence
In forceLow confidence
US 11,769,498Method, Apparatus, and Computer Program Product for Searchable Real-Time Transcribed Audio and Visual Content Within a Group-Based Communication System
In force
 · High confidence
In forceHigh confidence
US 10,929,155System, Method, and Apparatus for Building and Rendering a Message User Interface in a Group-Based Communication System
In force
 · High confidence
In forceHigh confidence
US 11,757,852Encryption Key Management for International Data Residency
In force
 · High confidence
In forceHigh confidence
US 11,729,228Systems and Methods for Sharing Content Externally from a Group-Based Communication Platform
In force
 · High confidence
In forceHigh confidence
US 12,328,645Method, Apparatus, and Computer Program Product for Organizational Telemetry Discovery Within a Group Based Communication System
In force
 · High confidence
In forceHigh confidence
10 of 12 patents shown.
Pro members see all 12.
Pro members: see all 12 patents
Also on record, not counted in the 12: 416 patents in force now held by others · 33 patents ended · 2 applications pending · 22 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.
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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