Société Française de Détecteurs Infrarouges—sofradir

13 patents currently held · Updated Nov 14, 2026

13 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

Jun 2030

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 Feb 25, 2027
The maintenance fee for Radiation detection device with improved illumination range having a photodetector that operates in two detecting modes (US 9,116,040) comes due Feb 25, 2027. Unpaid by Aug 25, 2027, it lapses early.
1 fee due Sep 22, 2027
The maintenance fee for Detection circuit with anti-blooming circuit (US 9,291,498) comes due Sep 22, 2027. Unpaid by Mar 22, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

1 term has ended since Aug 16, 2026

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 8,217,641	Device and method for reading electric currents resulting from an electromagnetic signal detector In force Term ends Jun 5, 2030 · From the USPTO record	In force	Term ends Jun 5, 2030	From the USPTO record
US 8,274,334	Detection circuit with improved anti-blooming circuit In force Term ends Sep 22, 2030 · From the USPTO record	In force	Term ends Sep 22, 2030	From the USPTO record
US 8,344,926	Analog-to-digital converter on two bits with successive approximations In force Term ends Jan 10, 2031 · From the USPTO record	In force	Term ends Jan 10, 2031	From the USPTO record
US 8,283,618	Method and device for reading electrical charges produced by a photo-detector, and detector comprising such devices In force Term ends Feb 6, 2031 · From the USPTO record	In force	Term ends Feb 6, 2031	From the USPTO record
US 8,263,925	Acquisition circuit comprising a buffer capacitor In force Term ends Apr 11, 2031 · From the USPTO record	In force	Term ends Apr 11, 2031	From the USPTO record
US 8,900,907	Method for Manufacturing an Electromagnetic Radiation Detector and Detector Obtained by a Growth Substrate Removal Method In force Term ends Sep 27, 2032 · High confidence	In force	Term ends Sep 27, 2032	High confidence
US 8,872,097	Low-flux and low-noise detection circuit having a readout circuit with shielded integration node In force Term ends Feb 8, 2033 · From the USPTO record	In force	Term ends Feb 8, 2033	From the USPTO record
US 9,389,119	Compact detection array having improved polarization conditions In force Term ends Feb 20, 2033 · From the USPTO record	In force	Term ends Feb 20, 2033	From the USPTO record
US 9,520,844	Electromagnetic radiation detection circuit for pulse detection including an amplifying transistor and a coupling capacitor In force Term ends Apr 21, 2033 · From the USPTO record	In force	Term ends Apr 21, 2033	From the USPTO record
US 9,116,040	Radiation detection device with improved illumination range having a photodetector that operates in two detecting modes In force Term ends Jul 30, 2033 · From the USPTO record	In force	Term ends Jul 30, 2033	From the USPTO record

10 of 13 patents shown.

Pro members see all 13.

Pro members: see all 13 patents

Also on record, not counted in the 13: 13 patents in force now held by others · 13 lapsed for an unpaid fee · 5 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.

3 no status recorded

Showing 1 to 3 of 3, newest filing first. An application has no patent term. A term is computed when and if it grants, and appears on that patent's own page. No title is shown: the bulk publication record carries none for these applications, and this site holds no USPTO file history for them.

Application	Filed	Status
13/678,015	Nov 15, 2012	No status recorded
12/510,472	Jul 28, 2009	No status recorded
11/972,111	Jan 10, 2008	No status recorded