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.
82
Ending by 2030
Feb 2027
Next term end
199
Patent families
When these terms end
Held patents by the year their term ends
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
Ends Sep 2028 · High confidence
Also notable
Ends May 2036 · Medium confidence
Also notable
Ends Mar 2029 · High confidence
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.
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.
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.
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, 2026The 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, 2027The 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.
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 · High confidence | In force | High confidence | |
| US 10,191,299 | Zone Extension Systems and Methods In force · High confidence | In force | High confidence | |
| US 10,070,783 | Induced High Order Aberrations Corresponding to Geometrical Transformations In force · High confidence | In force | High confidence | |
| US 7,969,585 | Geometric Measurement System and Method of Measuring a Geometric Characteristic of an Object In force · High confidence | In force | High confidence | |
| US 7,522,642 | Method and System for Laser Amplification Using a Dual Crystal Pockels Cell In force · High confidence | In force | High confidence | |
| US 8,016,420 | System and Method for Illumination and Fixation with Ophthalmic Diagnostic Instruments In force · High confidence | In force | High confidence | |
| US 7,575,322 | Auto-Alignment and Auto-Focus System and Method In force · High confidence | In force | High confidence | |
| US 7,570,351 | Method and System for Measuring the Curvature of an Optical Surface In force · High confidence | In force | High confidence | |
| US 7,967,436 | Wavefront Refractions and High Order Aberration Correction When Wavefront Maps Involve Geometrical Transformations In force · High confidence | In force | High confidence | |
| US 8,827,449 | Induced High Order Aberrations Corresponding to Geometrical Transformations In force · High confidence | In force | High confidence |
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.