The Patent Finder
AT

Ao Technology AG

Filings on record here from 2001, where this site's data begins
OverviewNotableFeesChangesFamiliesPatent listSources & methods

21 patents currently held

20 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 2028. from the record

Of the 20 now held by other companies, 15 were conveyed to DePuy Synthes Products Inc. in the filing they arrived in, and 5 more name another party. Each row says which.

Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
8
Ending by 2030
Mar 2028
Next term end
20
Patent families

When these terms end

Held patents by the year their term ends
20262027202820292030203120322033203420352036203720382039204020412042204320442045
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

Formerly held, still cited

Notable
The most cited patent in this portfolio, cited by 837 later US patents, top 1% of utility patents granted in 2020 in our data. Protection runs to 2037.
now held by Synthes GmbH
Ends Jun 2037 · High confidence
Also notable
Cited by 5 later US patents, top 25% of utility patents granted in 2022 in our data. Protection runs to 2038.
Ends Oct 2038 · High confidence
Also notable
Cited by 9 later US patents, top 25% of utility patents granted in 2020 in our data. Protection runs to 2038.
Ends Apr 2038 · 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 Dec 23, 2026
    The maintenance fee for Bone Fixation Device with Cover (US 9,060,819) comes due Dec 23, 2026. Unpaid by Jun 23, 2027, it lapses early.
  • 1 fee due Jan 7, 2027
    The maintenance fee for Cannula and Device for Liquid Jet Irrigation of Bone (US 9,072,529) comes due Jan 7, 2027. Unpaid by Jul 7, 2027, it lapses early.
  • 1 fee due Apr 15, 2027
    The maintenance fee for Device for Processing and Transmitting Measured Signals for Monitoring And/Or Controlling Medical Implants, Diagnostic Devices or Biological Processes (US 10,441,171) comes due Apr 15, 2027. Unpaid by Oct 15, 2027, it lapses early.
  • 1 fee due Jun 24, 2027
    The maintenance fee for Method for Manufacturing an Auxiliary Device Suitable for the Manufacture of a Patient Customized Implant (US 10,512,546) comes due Jun 24, 2027. Unpaid by Dec 27, 2027, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

  • 2 of the patents on this record were granted since Aug 16, 2026

What they patent

The 5 largest of its 20 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.

Patents held now

Soonest term end first.
PatentTitleStatusExpiresConfidence
US 8,051,720Method and Device for Measuring the Local Mechanical Resistance of a Porous Body
In force
 · High confidence
In forceHigh confidence
US 8,475,464Cannula
In force
 · High confidence
In forceHigh confidence
US 8,118,818Method and Device for Computer Assisted Distal Locking of Intramedullary Nails
In force
 · High confidence
In forceHigh confidence
US 10,441,171Device for Processing and Transmitting Measured Signals for Monitoring And/Or Controlling Medical Implants, Diagnostic Devices or Biological Processes
In force
 · High confidence
In forceHigh confidence
US 8,444,645Method and Device for Computer Assisted Distal Locking of Intramedullary Nails
In force
 · High confidence
In forceHigh confidence
US 8,585,742Bone Fixation Device
In force
 · High confidence
In forceHigh confidence
US 9,060,819Bone Fixation Device with Cover
In force
 · High confidence
In forceHigh confidence
US 9,072,529Cannula and Device for Liquid Jet Irrigation of Bone
In force
 · High confidence
In forceHigh confidence
US 9,603,670Method for Designing And/Or Optimizing a Surgical Device
In force
 · High confidence
In forceHigh confidence
US 10,194,802Device for Processing and Transmitting Measured Signals for Monitoring And/Or Controlling Medical Implants, Diagnostic Devices or Biological Processes
In force
 · High confidence
In forceHigh confidence
10 of 21 patents shown.
Pro members see all 21.
Pro members: see all 21 patents
Also on record, not counted in the 21: 20 patents in force now held by others · 12 patents ended · 7 applications pending · 10 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.
The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited