433 patents currently held

6 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.

2 more records may belong here and await a decision; they are not counted.

The next term ends in Feb 2027. from the record

Free plan: 3 watched companies. Pro: unlimited.

Alerts on its grants, lapses and transfers.

Ending by 2030

Feb 2027

Next term end

199

Patent families

When these terms end

5 yrs10 yrs20 yrs

Held patents by the year their term ends

20262027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045

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

Apparatus for Patterned Plasma-Mediated Laser Trephination of the Lens Capsule and Three Dimensional Phaco-Segmentation US 8,394,084

The most cited patent in this portfolio, cited by 388 later US patents, top 1% of utility patents granted in 2013 in our data. Protection runs to 2028.

Ends Sep 2028 · High confidence Also notable

Corneal Topography Measurements and Fiducial Mark Incisions in Laser Surgical Procedures US 10,369,053

Cited by 76 later US patents, top 5% of utility patents granted in 2019 in our data. Protection runs to 2036.

Ends May 2036 · Medium confidence Also notable

Apparatus for Creating Incisions to Improve Intraocular Lens Placement US 8,518,026

Cited by 155 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 2029.

Ends Mar 2029 · 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 Nov 30, 2026
The maintenance fee for Automated Calibration of Laser System and Tomography System with Fluorescent Imaging of Scan Pattern (US 11,660,230) comes due Nov 30, 2026. Unpaid by Jun 1, 2027, it lapses early.
7 fees due Dec 11 to 25, 2026 · next Dec 11
6 fees due Jan 4 to 30, 2027 · next Jan 4
14 fees due Feb 6 to 28, 2027 · next Feb 6
9 fees due Mar 5 to 22, 2027 · next Mar 5
13 fees due Apr 1 to 29, 2027 · next Apr 1
8 fees due May 5 to 28, 2027 · next May 5
8 fees due Jun 1 to 26, 2027 · next Jun 1
13 fees due Jul 2 to 30, 2027 · next Jul 2
14 fees due Aug 4 to 27, 2027 · next Aug 4
6 fees due Sep 1 to 10, 2027 · next Sep 1
10 fees due Oct 2 to 28, 2027 · next Oct 2
1 fee due Nov 12, 2027
The maintenance fee for In Situ Determination of Refractive Index of Materials (US 10,646,116) comes due Nov 12, 2027. Unpaid by May 12, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

Oct 27Assignment recorded on 1 record: Malek Tabrizi, Alireza and 5 others to Amo Development, LLC Recorded Oct 27, 2026, executed Oct 12, 2026. Conveyance as recorded: Assignment of Assignor's Interest. A recorded assignment is a filed document, not a statement of current ownership. Reel 76531, frame 417.
9 of the patents on this record were granted since Aug 16, 2026
1 term has ended since Aug 16, 2026

What they patent

The 5 largest of its 199 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.

Apparatus for Creating Incisions to Improve Intraocular Lens Placement	16 in force	to Mar 2030
Laser Eye Surgery System	11 in force	to Feb 2034
Laser Fiducials for Axis Alignment in Cataract Surgery	10 in force	to Aug 2037
Method for Patterned Plasma-Mediated Modification of the Crystalline Lens	10 in force	to Dec 2029
Liquid Optical Interface for Laser Eye Surgery System	9 in force	to Jun 2036

Patents held now

Soonest term end first.

Patent	Title	Status	Expires	Confidence
US 7,887,187	Scaling Zernike Coefficients to Smaller Pupil Sizes for Refractive Treatments In force Term ends Feb 16, 2027 · High confidence	In force	Term ends Feb 16, 2027	High confidence
US 10,191,299	Zone Extension Systems and Methods In force Term ends Feb 16, 2027 · High confidence	In force	Term ends Feb 16, 2027	High confidence
US 10,070,783	Induced High Order Aberrations Corresponding to Geometrical Transformations In force Term ends Apr 3, 2027 · High confidence	In force	Term ends Apr 3, 2027	High confidence
US 7,969,585	Geometric Measurement System and Method of Measuring a Geometric Characteristic of an Object In force Term ends Apr 9, 2027 · High confidence	In force	Term ends Apr 9, 2027	High confidence
US 7,522,642	Method and System for Laser Amplification Using a Dual Crystal Pockels Cell In force Term ends May 18, 2027 · High confidence	In force	Term ends May 18, 2027	High confidence
US 8,016,420	System and Method for Illumination and Fixation with Ophthalmic Diagnostic Instruments In force Term ends Jun 18, 2027 · High confidence	In force	Term ends Jun 18, 2027	High confidence
US 7,575,322	Auto-Alignment and Auto-Focus System and Method In force Term ends Jun 20, 2027 · High confidence	In force	Term ends Jun 20, 2027	High confidence
US 7,570,351	Method and System for Measuring the Curvature of an Optical Surface In force Term ends Jul 19, 2027 · High confidence	In force	Term ends Jul 19, 2027	High confidence
US 7,967,436	Wavefront Refractions and High Order Aberration Correction When Wavefront Maps Involve Geometrical Transformations In force Term ends Aug 1, 2027 · High confidence	In force	Term ends Aug 1, 2027	High confidence
US 8,827,449	Induced High Order Aberrations Corresponding to Geometrical Transformations In force Term ends Aug 1, 2027 · High confidence	In force	Term ends Aug 1, 2027	High confidence

10 of 433 patents shown.

Pro members see all 433.

Pro members: see all 433 patents

Also on record, not counted in the 433: 6 patents in force now held by others · 100 patents ended · 27 applications pending · 68 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.

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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