19 patents currently held

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.

1 more record may belong here and awaits a decision; it is not counted.

The next term ends in Mar 2030. from the record

Of the 5 now held by other companies, 5 name Littera Education Inc. as their current owner. Each row says so.

Free plan: 3 watched companies. Pro: unlimited.

Alerts on its grants, lapses and transfers.

Ending by 2030

Mar 2030

Next term end

Patent families

When these terms end

5 yrs10 yrs20 yrs

Held patents by the year their term ends

20262027202820292030203120322033 2034 2035 2036 203720382039204020412042204320442045

notable patents fee due within 90 days 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. Fee due within 90 days: a maintenance fee is due within 90 days of when this page was computed and not yet paid.

Notable patents

Ranked by citations and family size, against patents of the same kind granted the same year. How we rank

Notable

Collaborative, Social Online Education and Whiteboard Techniques US 10,126,927

The most cited patent in this portfolio, cited by 89 later US patents, top 5% of utility patents granted in 2018 in our data. Protection runs to 2035.

Ends Jun 2035 · Medium confidence Also notable

Systems and Methods for Tracking Referrals Among a Plurality of Members of a Social Network US 10,621,608

Cited by 34 later US patents, top 5% of utility patents granted in 2020 in our data. Protection runs to 2033.

Ends May 2033 · High confidence Also notable

Account Sharing Prevention and Detection in Online Education US 9,912,676

Granted 2018 and renewed at every maintenance window due so far. Protection runs to 2037.

Ends Jun 2037 · Medium confidence

Formerly held, still cited

Notable

Video Conference with Shared Whiteboard and Recording US 10,768,885

Cited by 15 later US patents, top 25% of utility patents granted in 2020 in our data. Protection runs to 2039.

now held by Littera Education Inc.

Ends Jun 2039 · 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.

2 fees due Feb 1 to 6, 2027 · next Feb 1
1 fee due Apr 29, 2027
The maintenance fee for Automated Production of Chapter File for Video Player (US 10,460,178) comes due Apr 29, 2027. Unpaid by Oct 29, 2027, it lapses early.
1 fee due May 5, 2027
The maintenance fee for Award Incentives for Facilitating Collaborative, Social Online Education (US 10,467,918) comes due May 5, 2027. Unpaid by Nov 5, 2027, it lapses early.
1 fee due Jun 24, 2027
The maintenance fee for Video Presentation, Digital Compositing, and Streaming Techniques Implemented via a Computer Network (US 10,515,561) comes due Jun 24, 2027. Unpaid by Dec 27, 2027, it lapses early.
1 fee due Aug 25, 2027
The maintenance fee for Collaborative, Social Online Education and Whiteboard Techniques (US 10,572,135) comes due Aug 25, 2027. Unpaid by Feb 25, 2028, it lapses early.
1 fee due Oct 14, 2027
The maintenance fee for Systems and Methods for Tracking Referrals Among a Plurality of Members of a Social Network (US 10,621,608) comes due Oct 14, 2027. Unpaid by Apr 14, 2028, 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.

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.

Collaborative, Social Online Education and Whiteboard Techniques	9 in force	to Jun 2035
Limited Tokens in Online Education	2 in force	to Mar 2036
Systems and Methods for Tracking Referrals Among a Plurality of Members of a Social Network	2 in force	to May 2033
Storage and Retrieval of Video Conference State Based Upon Participants	1 in force	to Dec 2041
Queuing for a Video Conference Session	1 in force	to Dec 2041

Patents held now

Soonest term end first.

Patent	Title	Status	Expires	Confidence
US 10,748,168	Systems and Methods for Tracking Referrals Among a Plurality of Members of a Social Network In force Term ends Mar 5, 2030 · High confidence	In force	Term ends Mar 5, 2030	High confidence
US 10,621,608	Systems and Methods for Tracking Referrals Among a Plurality of Members of a Social Network In force Term ends May 19, 2033 · High confidence	In force	Term ends May 19, 2033	High confidence
US 10,467,918	Award Incentives for Facilitating Collaborative, Social Online Education In force Term ends Mar 17, 2034 · Medium confidence	In force	Term ends Mar 17, 2034	Medium confidence
US 10,515,561	Video Presentation, Digital Compositing, and Streaming Techniques Implemented via a Computer Network In force Term ends Mar 17, 2034 · Medium confidence	In force	Term ends Mar 17, 2034	Medium confidence
US 10,572,135	Collaborative, Social Online Education and Whiteboard Techniques In force Term ends Mar 17, 2034 · Medium confidence	In force	Term ends Mar 17, 2034	Medium confidence
US 10,908,802	Collaborative, Social Online Education and Whiteboard Techniques In force Term ends Mar 17, 2034 · Medium confidence	In force	Term ends Mar 17, 2034	Medium confidence
US 10,908,803	Collaborative, Social Online Education and Whiteboard Techniques In force Term ends Mar 17, 2034 · Medium confidence	In force	Term ends Mar 17, 2034	Medium confidence
US 11,056,013	Dynamic Filtering and Tagging Functionality Implemented in Collaborative, Social Online Education Networks In force Term ends Mar 17, 2034 · Medium confidence	In force	Term ends Mar 17, 2034	Medium confidence
US 11,113,983	Video Presentation, Digital Compositing, and Streaming Techniques Implemented via a Computer Network In force Ends no later than Mar 17, 2034 · Low confidence	In force	Ends no later than Mar 17, 2034	Low confidence
US 11,151,889	Video Presentation, Digital Compositing, and Streaming Techniques Implemented via a Computer Network In force Term ends Mar 17, 2034 · Medium confidence	In force	Term ends Mar 17, 2034	Medium confidence

10 of 19 patents shown.

Pro members see all 19.

Pro members: see all 19 patents

Also on record, not counted in the 19: 5 patents in force now held by others · 1 patent ended · 1 application 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.

Fee due within 90 days marks a patent with a maintenance fee due within 90 days of the date this page was computed and not yet recorded paid, so it can end earlier than the bar shows. A fee left unpaid ends the patent at the close of the six month grace period that follows its due date, not on the due date itself. It is not a prediction that the fee will be missed.

Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.

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