Operations Technology Development, NFP

15 patents currently held · Updated Nov 14, 2026

2 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 2 name spellings.

Ending by 2030

Jul 2029

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.

2 fees due May 10 to 21, 2027 · next May 10

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 7,886,773	Low pressure directional stop bypass device In force Term ends Jul 28, 2029 · From the USPTO record	In force	Term ends Jul 28, 2029	From the USPTO record
US 7,938,007	Method for inspecting joined material interfaces In force Term ends Oct 4, 2029 · From the USPTO record	In force	Term ends Oct 4, 2029	From the USPTO record
US 8,358,120	Non-intrusive detection of live electrical lines In force Term ends Jul 12, 2031 · From the USPTO record	In force	Term ends Jul 12, 2031	From the USPTO record
US 8,536,817	Saddle-shaped trajectory generator for two intersecting pipes In force Term ends Nov 10, 2031 · From the USPTO record	In force	Term ends Nov 10, 2031	From the USPTO record
US 9,183,222	Mapping and asset lifecycle tracking system In force Term ends Jan 28, 2034 · From the USPTO record	In force	Term ends Jan 28, 2034	From the USPTO record
US 9,500,311	Directional insertion tool In force Term ends Nov 28, 2034 · From the USPTO record	In force	Term ends Nov 28, 2034	From the USPTO record
US 9,534,490	System and method for detecting underground cross-bores In force Term ends Jul 29, 2035 · From the USPTO record	In force	Term ends Jul 29, 2035	From the USPTO record
US 10,189,059	Devices for cross bore safeguard during sewer system cleanouts In force Term ends Mar 5, 2037 · From the USPTO record	In force	Term ends Mar 5, 2037	From the USPTO record
US 10,801,657	Detachable system to shut off pressure flow in pipes In force Term ends Jun 3, 2038 · From the USPTO record	In force	Term ends Jun 3, 2038	From the USPTO record
US 10,801,186	Integrated system and method to determine activity of excavation machinery In force Term ends Aug 3, 2038 · From the USPTO record	In force	Term ends Aug 3, 2038	From the USPTO record

10 of 15 patents shown.

Pro members see all 15.

Pro members: see all 15 patents

Also on record, not counted in the 15: 2 patents in force now held by others · 5 lapsed for an unpaid fee · 1 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.

2 no status recorded

List them