43 patents currently held
51 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.
13 more records may belong here and await a decision; they are not counted.
The next term ends in Dec 2027. from the record
Of the 51 now held by other companies, 33 name Again Technology Holdings Inc. as their current owner, and 18 more name another party. Each row says which.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
20
Ending by 2030
Dec 2027
Next term end
21
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 Apr 2029 · High confidence
Also notable
Ends Dec 2028 · Medium confidence
Also notable
Ends Apr 2033 · High confidence
Even Carbon Number Paraffin Composition and Method of Manufacturing Same
US 8,231,804
Cited by 39 later US patents, top 25% of utility patents granted in 2012 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2029. A terminal disclaimer caps this term to an earlier patent's.
Biorenewable Naphtha Composition and Methods of Making Same
US 8,581,013
Cited by 36 later US patents, top 25% of utility patents granted in 2013 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2028.
Bio-Based Synthetic Fluids
US 8,969,259
Cited by 21 later US patents, top 25% of utility patents granted in 2015 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2033.
Formerly held, still cited
Notable
Ends May 2027 · High confidence
Cited by 129 later US patents, top 5% of utility patents granted in 2012 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2027.
now held by Again Technology Holdings Inc.
Also notable
Ends Jun 2031 · High confidence
Cited by 107 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 2031.
now held by Again Technology Holdings Inc.
Also notable
Ends Jan 2032 · High confidence
Cited by 46 later US patents, top 25% of utility patents granted in 2013 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2032.
now held by Again Technology Holdings Inc.
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, 2026The maintenance fee for Biorenewable Naphtha Composition (US 9,061,951) comes due Dec 23, 2026. Unpaid by Jun 23, 2027, it lapses early.
- 1 fee due Feb 11, 2027The maintenance fee for Low Cost Process for Manufacture of Form-Stable Phase Change Material (US 9,102,080) comes due Feb 11, 2027. Unpaid by Aug 11, 2027, it lapses early.
- 1 fee due Mar 15, 2027The maintenance fee for Biorenewable Naphtha (US 9,133,080) comes due Mar 15, 2027. Unpaid by Sep 15, 2027, it lapses early.
- 2 fees due Apr 17 to 20, 2027 · next Apr 17
- 1 fee due Aug 23, 2027The maintenance fee for Process for Increasing the Efficiency of Heat Removal from a Fischer-Tropsch Slurry Reactor (US 9,266,082) comes due Aug 23, 2027. Unpaid by Feb 23, 2028, it lapses early.
- 1 fee due Oct 19, 2027The maintenance fee for Plastic Phase Change Material and Articles Made Therefrom (US 9,315,710) comes due Oct 19, 2027. Unpaid by Apr 19, 2028, it lapses early.
- 1 fee due Nov 3, 2027The maintenance fee for Reducing Pressure Drop Buildup in Bio-Oil Hydroprocessing Reactors (US 9,328,303) comes due Nov 3, 2027. Unpaid by May 3, 2028, it lapses early.
Recent changes
- 1 of the patents on this record was granted since Aug 16, 2026
- 1 term has ended since Aug 16, 2026
What they patent
The 5 largest of its 21 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Even Carbon Number Paraffin Composition and Method of Manufacturing Same | 6 in force | to Jun 2029 |
| Biorenewable Naphtha Composition and Methods of Making Same | 4 in force | to Dec 2028 |
| Method for Upgrading Low-Value and Waste Fats, Oils, and Greases | 3 in force | to Jul 2039 |
| Bio-Based Synthetic Fluids | 3 in force | to Apr 2033 |
| Hydrodeoxygenation Process | 3 in force | to Jul 2030 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 8,575,409 | Method for the Removal of Phosphorus held by Reg Synthetic Fuels, LLC In force · High confidence | In force | High confidence | |
| US 8,629,308 | Method for the Conversion of Polymer Contaminated Feedstocks held by Reg Synthetic Fuels, LLC In force · High confidence | In force | High confidence | |
| US 7,776,207 | Process to Produce Middle Distillate held by Reg Synthetic Fuels, LLC In force · High confidence | In force | High confidence | |
| US 8,558,042 | Biorenewable Naphtha held by Reg Synthetic Fuels, LLC In force · Medium confidence | In force | Medium confidence | |
| US 9,061,951 | Biorenewable Naphtha Composition held by Reg Synthetic Fuels, LLC In force · Medium confidence | In force | Medium confidence | |
| US 9,133,080 | Biorenewable Naphtha held by Reg Synthetic Fuels, LLC In force · Medium confidence | In force | Medium confidence | |
| US 11,097,994 | Even Carbon Number Paraffin Composition and Method of Manufacturing Same held by Reg Synthetic Fuels, LLC In force · Medium confidence | In force | Medium confidence | |
| US 11,623,899 | Even Carbon Number Paraffin Composition and Method of Manufacturing Same held by Reg Synthetic Fuels, LLC In force · Medium confidence | In force | Medium confidence | |
| US 9,266,082 | Process for Increasing the Efficiency of Heat Removal from a Fischer-Tropsch Slurry Reactor held by Reg Synthetic Fuels, LLC In force · High confidence | In force | High confidence | |
| US 8,581,013 | Biorenewable Naphtha Composition and Methods of Making Same held by Reg Synthetic Fuels, LLC In force · Medium confidence | In force | Medium confidence |
Also on record, not counted in the 43: 51 patents in force now held by others · 38 patents ended · 8 applications pending · 32 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.