Dali Systems Co. Ltd.

83 patents currently held · Updated Nov 14, 2026

57 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.

Recorded under 3 name spellings.

Ending by 2030

Dec 2027

Next term end

When these terms end

5 yrs10 yrs20 yrs

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 Nov 21, 2026
The maintenance fee for N-way doherty distributed power amplifier with power tracking (US 10,298,177) comes due Nov 21, 2026. Unpaid by May 21, 2027, it lapses early.
1 fee due Dec 2, 2026
The maintenance fee for High efficiency, remotely reconfigurable remote radio head unit system and method for wireless communications (US 9,048,797) comes due Dec 2, 2026. Unpaid by Jun 2, 2027, it lapses early.
1 fee due Feb 11, 2027
The maintenance fee for Remote radio head unit system with wideband power amplifier and method (US 9,106,453) comes due Feb 11, 2027. Unpaid by Aug 11, 2027, it lapses early.
1 fee due Mar 17, 2027
The maintenance fee for Feedback based indoor localization using digital off-air access units (US 10,416,312) comes due Mar 17, 2027. Unpaid by Sep 17, 2027, it lapses early.
1 fee due Apr 22, 2027
The maintenance fee for Method and system for link synchronization in an LTE-TDD architecture (US 10,455,535) comes due Apr 22, 2027. Unpaid by Oct 22, 2027, it lapses early.
3 fees due May 10 to 24, 2027 · next May 10
1 fee due Jun 29, 2027
The maintenance fee for Method and system for aligning signals widely spaced in frequency for wideband digital predistortion in wireless communication systems (US 9,225,296) comes due Jun 29, 2027. Unpaid by Dec 29, 2027, it lapses early.
1 fee due Jul 12, 2027
The maintenance fee for Software configurable distributed antenna system and method for bandwidth compression and transport of signals in noncontiguous frequency blocks (US 9,236,897) comes due Jul 12, 2027. Unpaid by Jan 12, 2028, it lapses early.
1 fee due Aug 9, 2027
The maintenance fee for Wide bandwidth digital predistortion system with reduced sampling rate (US 9,258,022) comes due Aug 9, 2027. Unpaid by Feb 9, 2028, it lapses early.
1 fee due Nov 5, 2027
The maintenance fee for Redundancy in a Public Safety Distributed Antenna System (US 10,644,798) comes due Nov 5, 2027. Unpaid by May 5, 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.

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.

Patent	Title	Status	Expires	Confidence
US 8,509,347	Method and system for baseband predistortion linearization in multi-channel wideband communication systems In force Ends no later than Dec 20, 2027 · From the USPTO record	In force	Ends no later than Dec 20, 2027	From the USPTO record
US 8,855,234	Method and system for baseband predistortion linearization in multi-channel wideband communications systems In force Ends no later than Dec 20, 2027 · From the USPTO record	In force	Ends no later than Dec 20, 2027	From the USPTO record
US 9,246,731	Method and system for baseband predistortion linearization in multi-channel wideband communication systems In force Ends no later than Dec 20, 2027 · From the USPTO record	In force	Ends no later than Dec 20, 2027	From the USPTO record
US 9,913,194	Method and system for baseband predistortion linearization in multi-channel wideband communication systems In force Ends no later than Dec 20, 2027 · From the USPTO record	In force	Ends no later than Dec 20, 2027	From the USPTO record
US 8,274,332	N-way Doherty distributed power amplifier with power tracking In force Term ends Apr 23, 2028 · From the USPTO record	In force	Term ends Apr 23, 2028	From the USPTO record
US 8,618,883	N-way doherty distributed power amplifier with power tracking In force Ends no later than Apr 23, 2028 · From the USPTO record	In force	Ends no later than Apr 23, 2028	From the USPTO record
US 9,184,703	N-way doherty distributed power amplifier with power tracking In force Ends no later than Apr 23, 2028 · From the USPTO record	In force	Ends no later than Apr 23, 2028	From the USPTO record
US 10,298,177	N-way doherty distributed power amplifier with power tracking In force Ends no later than Apr 23, 2028 · From the USPTO record	In force	Ends no later than Apr 23, 2028	From the USPTO record
US 7,688,135	N-way Doherty distributed power amplifier In force Term ends Jun 5, 2028 · From the USPTO record	In force	Term ends Jun 5, 2028	From the USPTO record
US 8,401,499	Baseband-derived RF digital predistortion In force Term ends Dec 8, 2028 · From the USPTO record	In force	Term ends Dec 8, 2028	From the USPTO record

10 of 83 patents shown.

Pro members see all 83.

Pro members: see all 83 patents

Also on record, not counted in the 83: 57 patents in force now held by others · 1 lapsed for an unpaid fee · 21 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.

Export every term end as CSV · Pro

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.

4 abandoned · 26 no status recorded

List them