85 patents currently held

Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.

The next term ends in Mar 2027. from the record

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Alerts on its grants, lapses and transfers.

Ending by 2030

Mar 2027

Next term end

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 203420352036203720382039204020412042204320442045

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

Ticket Approval System for and Method of Performing Quality Control in Field Service Applications US 9,659,268

Cited by 162 later US patents, top 5% of utility patents granted in 2017 in our data, and renewed at every maintenance window due so far. Protection runs to 2029.

Ends Jun 2029 · High confidence Also notable

Electronically Controlled Marking Apparatus and Methods US 9,086,277

Cited by 151 later US patents, top 5% of utility patents granted in 2015 in our data, and renewed at every maintenance window due so far. Protection runs to 2029.

Ends May 2029 · High confidence Also notable

Neighborhood node mapping methods and apparatus for ingress mitigation in cable communication systems US 8,948,596

Cited by 77 later US patents, top 10% of utility patents granted in 2015 in our data, and renewed at every maintenance window due so far. Protection runs to 2032.

Ends Nov 2032 · 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 2, 2026
The maintenance fee for Methods, Apparatus and Systems for Surface Type Detection in Connection with Locate and Marking Operations (US 9,046,413) comes due Dec 2, 2026. Unpaid by Jun 2, 2027, it lapses early.
2 fees due Jan 21, 2027
1 fee due Feb 4, 2027
The maintenance fee for Methods and Marking Devices with Mechanisms for Indicating And/Or Detecting Marking Material Color (US 9,097,522) comes due Feb 4, 2027. Unpaid by Aug 4, 2027, it lapses early.
1 fee due Mar 1, 2027
The maintenance fee for Methods and Apparatus for Tracking Motion And/Or Orientation of a Marking Device (US 9,124,780) comes due Mar 1, 2027. Unpaid by Sep 1, 2027, it lapses early.
2 fees due Apr 13 to 20, 2027 · next Apr 13
5 fees due May 3 to 17, 2027 · next May 3
3 fees due Jun 1 to 8, 2027 · next Jun 1
1 fee due Jul 12, 2027
The maintenance fee for Methods, Apparatus, and Systems for Providing an Enhanced Positive Response for Underground Facility Locate and Marking Operations Based on an Electronic Manifest Documenting Physical Locate Marks on Ground, Pavement or Other Surface (US 9,235,821) comes due Jul 12, 2027. Unpaid by Jan 12, 2028, it lapses early.
2 fees due Aug 9, 2027
1 fee due Sep 8, 2027
The maintenance fee for Systems and Methods for Generating Electronic Records of Locate and Marking Operations (US 9,279,900) comes due Sep 8, 2027. Unpaid by Mar 8, 2028, it lapses early.
1 fee due Oct 12, 2027
The maintenance fee for Methods, Apparatus and Systems for Onsite Linking to Location-Specific Electronic Records of Locate Operations (US 9,311,614) comes due Oct 12, 2027. Unpaid by Apr 12, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

6 terms have ended since Aug 16, 2026

What they patent

The 5 largest of its 16 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.

Electronic Manifest of Underground Facility Locate Marks	55 in force	to Nov 2031
Marking System and Method with Location And/Or Time Tracking	10 in force	to Nov 2029
Neighborhood node mapping methods and apparatus for ingress mitigation in cable communication systems	4 in force	to Nov 2032
Marker Detection Mechanisms for Use in Marking Devices and Methods of Using Same	2 in force	to Nov 2031
Methods, Apparatus and Systems for Onsite Linking to Location-Specific Electronic Records of Locate Operations	2 in force	to Jul 2031

Patents held now

Soonest term end first.

Patent	Title	Status	Expires	Confidence
US 8,903,643	Hand-held marking apparatus with location tracking system and methods for logging geographic location of same In force Term ends Mar 13, 2027 · Medium confidence	In force	Term ends Mar 13, 2027	Medium confidence
US 8,924,154	Methods, Apparatus and Systems for Determining Correctness and Completeness of Locate Operations In force Term ends May 24, 2027 · Medium confidence	In force	Term ends May 24, 2027	Medium confidence
US D684,067	Modular Marking Device In force Term ends Jun 11, 2027 · High confidence	In force	Term ends Jun 11, 2027	High confidence
US 8,407,001	Systems and Methods for Using Location Data to Electronically Display Dispensing of Markers by a Marking System or Marking Tool In force Term ends Nov 5, 2027 · High confidence	In force	Term ends Nov 5, 2027	High confidence
US 8,532,341	Electronically Documenting Locate Operations for Underground Utilities In force Term ends Feb 12, 2028 · High confidence	In force	Term ends Feb 12, 2028	High confidence
US 8,543,937	Methods and Apparatus Employing a Reference Grid for Generating Electronic Manifests of Underground Facility Marking Operations In force Term ends Feb 12, 2028 · High confidence	In force	Term ends Feb 12, 2028	High confidence
US 8,907,978	Methods, Apparatus and Systems for Generating Searchable Electronic Records of Underground Facility Locate And/Or Marking Operations In force Term ends Feb 12, 2028 · Medium confidence	In force	Term ends Feb 12, 2028	Medium confidence
US 8,994,749	Methods, Apparatus and Systems for Generating Searchable Electronic Records of Underground Facility Locate And/Or Marking Operations In force Ends no later than Feb 12, 2028 · Low confidence	In force	Ends no later than Feb 12, 2028	Low confidence
US 9,183,646	Apparatus, Systems and Methods to Generate Electronic Records of Underground Facility Marking Operations Performed with GPS-Enabled Marking Devices In force Term ends Feb 12, 2028 · Medium confidence	In force	Term ends Feb 12, 2028	Medium confidence
US 9,256,849	Apparatus and Methods for Evaluating a Quality of a Locate Operation for Underground Utility In force Term ends Feb 12, 2028 · Medium confidence	In force	Term ends Feb 12, 2028	Medium confidence

10 of 85 patents shown.

Pro members see all 85.

Pro members: see all 85 patents

Also on record, not counted in the 85: 73 patents ended · 63 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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