91 patents currently held
1 more in force is now held by another company
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 Dec 2026. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
13
Ending by 2030
Dec 2026
Next term end
79
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 Jul 2037 · High confidence
Also notable
Ends Jun 2029 · High confidence
Also notable
Ends Oct 2034 · High confidence
Spray Dryer with Improved Exhaust Gas Filtration System
US 10,279,359
Cited by 17 later US patents, top 25% of utility patents granted in 2019 in our data, and renewed at 2 of 3 maintenance windows. Protection runs to 2037.
Spray Nozzle Configuration and Modeling System
US 8,160,851
Renewed at every maintenance window since the 2012 grant; no more fees are due before its term ends in 2029.
High Efficiency/Low Pressure Catalytic Cracking Spray Nozzle Assembly
US 10,201,794
Granted 2019 and renewed at 2 of 3 maintenance windows. Protection runs to 2034.
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 Jan 25, 2027The maintenance fee for Machine Learning-Based Particle-Laden Flow Field Characterization (US 11,709,121) comes due Jan 25, 2027. Unpaid by Jul 26, 2027, it lapses early.
- 3 fees due Feb 1 to 11, 2027 · next Feb 1
- 3 fees due Mar 3 to 8, 2027 · next Mar 3
- 2 fees due Apr 27 to 30, 2027 · next Apr 27
- 3 fees due Jun 3 to 19, 2027 · next Jun 3
- 2 fees due Jul 5 to 28, 2027 · next Jul 5
- 1 fee due Sep 3, 2027The maintenance fee for High Volume Water Electrolyzing System and Method of Using (US 10,577,262) comes due Sep 3, 2027. Unpaid by Mar 3, 2028, it lapses early.
- 1 fee due Oct 5, 2027The maintenance fee for Automated Tank Cleaning and Monitoring Device (US 9,302,301) comes due Oct 5, 2027. Unpaid by Apr 5, 2028, it lapses early.
Recent changes
- 2 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 79 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Apparatus and Method for Spray Drying | 5 in force | to Aug 2037 |
| Optical Spray Pattern Imaging Apparatus for Generating Images Including Density Image Features | 3 in force | to Mar 2041 |
| Liquid Dispensing Spray Nozzle Assembly | 2 in force | to Feb 2042 |
| Electrostatic Spray Drying Nozzle Assembly | 2 in force | to Sep 2040 |
| Sanitary Rotary Tank Cleaning Apparatus | 2 in force | to Nov 2036 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,461,797 | Air Knife In force · High confidence | In force | High confidence | |
| US 7,988,069 | Shower Header with Replaceable Internal Cleaning Brush Assembly In force · High confidence | In force | High confidence | |
| US 7,611,080 | Full Cone Air Assisted Spray Nozzle for Continuous Metal Casting Cooling In force · High confidence | In force | High confidence | |
| US 7,563,325 | Wurster Fluid Bed Coater with Fluidizing Gas Distribution Plate Bypass In force · High confidence | In force | High confidence | |
| US 7,913,937 | Descaling Spray Nozzle Assembly In force · High confidence | In force | High confidence | |
| US 7,789,325 | Air Atomizing Spray Nozzle with Magnetically Actuated Shutoff Valve In force · High confidence | In force | High confidence | |
| US 8,689,689 | System and Method for Marking Sheet Materials In force · High confidence | In force | High confidence | |
| US D729,345 | Liquid Spray Nozzle In force · High confidence | In force | High confidence | |
| US 8,160,851 | Spray Nozzle Configuration and Modeling System In force · High confidence | In force | High confidence | |
| US 9,302,301 | Automated Tank Cleaning and Monitoring Device In force · High confidence | In force | High confidence |
Also on record, not counted in the 91: 1 patent in force now held by others · 42 patents ended · 21 applications pending · 28 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.