The Patent Finder
IS

Intentional Software Corporation

First filing 2003
OverviewNotableFeesChangesPatent listSources & methods

0 patents currently held, every record listed here

9 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.

This portfolio holds none of the 9 US patents in force on its record. from the record

Of the 9 now held by other companies, 9 name Microsoft Technology Licensing LLC 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. 2010 to 2036.
US 9,158,507 Domain Transformation Languages Jan 2, 2027
US 7,756,859 Multi-Segment String Search Jan 25, 2027
US 10,684,829 System and Method for Combining Text Editing and Tree Encoding for Computer Programs May 29, 2035
US 10,387,547 Layout Engine for Creating a Visual Layout Tree for a Document Nov 2, 2035
US 10,430,500 Detecting and Animating a Change in Position of a Visual Layout Node of a Visual Layout Tree Nov 14, 2035
US 10,387,540 Generating a Visual Layout Tree Using Caching Techniques Mar 12, 2036
US 10,353,991 Generating a Visual Description Tree Based on a Layout Interruption Record Jun 30, 2036
US 10,402,478 Linking Visual Layout Nodes of a Visual Layout Tree Using Positioning Pointers Jul 1, 2036
US 11,003,833 Adding Visual Description Nodes to a Visual Description Tree During Layout Sep 5, 2036
201520202025203020352036
Every computed term in this portfolio is shown above.Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 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
Cited by 9 later US patents, top 25% of utility patents granted in 2020 in our data. Protection runs to 2035. A terminal disclaimer caps this term to an earlier patent's.
Ends May 2035 · High confidence
Also notable
The most cited patent in this portfolio, cited by 18 later US patents, top 25% of utility patents granted in 2015 in our data. Protection runs to 2027.
Ends Jan 2027 · High confidence
Also notable
Renewed at every maintenance window since the 2010 grant; no more fees are due before its term ends in 2027.
Ends Jan 2027 · 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: 9 patents in force now held by others · 10 patents ended · 3 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.
2 terminal disclaimers are on file with no resolved reference. No cap is applied and none is guessed
The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited