Method for the separation of the isoprenic constituents of guayule
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
-
Feb 25, 2020
Grant Date -
Jun 21, 2018
app pub date -
Jul 29, 2016
filing date -
Jul 29, 2016
priority date (Note) -
In Force
status (Latency Note)
![]() |
A preliminary load of PAIR data current through [] has been loaded. Any more recent PAIR data will be loaded within twenty-four hours. |
PAIR data current through []
A preliminary load of cached data will be loaded soon.
Any more recent PAIR data will be loaded within twenty-four hours.
![]() |
Next PAIR Update Scheduled on [ ] |

Importance

US Family Size
|
Non-US Coverage
|
Abstract
Method for the separation of at least one isoprenic constituent from the resin of a plant of guayule and/or of the guayule type comprising the steps of: a) providing a defatted resin of guayule and/or of the guayule type; b) subjecting the defatted resin to partitioning of the liquid-liquid type with solvents that are immiscible in each other thus obtaining an apolar extract containing the isoprenic constituents guayulin A, guayulin B and argentatin B; and a polar extract containing the isoprene constituents argentatin A, argentatin C and argentatin D; and c) separating at least one isoprenic constituent from said polar extract and/or from the apolar extract thus obtained, wherein step c) comprises a step in which the polar extract is subjected to partitioning of the liquid-liquid type with solvents immiscible in each other and/or a step in which the apolar extract is subjected to partitioning of the solid-liquid type.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
VERSALIS S P A | 20097 SAN DONATO MILANESE (MI) |
International Classification(s)

- 2016 Application Filing Year
- C09F Class
- 14 Applications Filed
- 9 Patents Issued To-Date
- 64.29 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Caldararo, Maria | Trecate, IT | 16 | 26 |
# of filed Patents : 16 Total Citations : 26 | |||
Del, Prete Danilo | Oleggio, IT | 1 | 0 |
# of filed Patents : 1 Total Citations : 0 | |||
Girotti, Gianni | San Giuliano Milanese, IT | 19 | 108 |
# of filed Patents : 19 Total Citations : 108 | |||
Querci, Cecilia | Novara, IT | 11 | 53 |
# of filed Patents : 11 Total Citations : 53 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 0 Citation Count
- C09F Class
- 0 % this patent is cited more than
- 5 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Aug 25, 2027 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 25, 2031 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

Legal Events
Date | Code | Event | Description |
---|---|---|---|
Aug 25, 2023 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4 |
Feb 25, 2020 | P | Publication | |
Feb 05, 2020 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Jan 21, 2020 | STPP | INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL | free format text: PUBLICATIONS -- ISSUE FEE PAYMENT VERIFIED |
Oct 28, 2019 | STPP | INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL | free format text: NOTICE OF ALLOWANCE MAILED -- APPLICATION RECEIVED IN OFFICE OF PUBLICATIONS |
Apr 23, 2019 | STPP | INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL | free format text: NON FINAL ACTION MAILED |
Jun 21, 2018 | P | Published | |
Mar 22, 2018 | STPP | INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL | free format text: DOCKETED NEW CASE - READY FOR EXAMINATION |
Dec 05, 2017 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:QUERCI, CECILIA;DEL PRETE, DANILO;CALDARARO, MARIA;AND OTHERS;SIGNING DATES FROM 20171120 TO 20171121;REEL/FRAME:044302/0517 Owner name: VERSALIS S.P.A., ITALY |
Dec 05, 2017 | FEPP | FEE PAYMENT PROCEDURE | free format text: ENTITY STATUS SET TO UNDISCOUNTED (ORIGINAL EVENT CODE: BIG.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Jul 29, 2016 | F | Filing | |
Jul 31, 2015 | PD | Priority Date |

Matter Detail

Renewals Detail
