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Fort Worth, TX, United States of America

Phyton Holdings, LLC

USPTO Granted Patents = 15

% Expired Patents = 53.3

CIPO Patents = 3

EPO Patents = 9

Trademarks = 6

Forward Citations = 39

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44 inventors (with patents filed for the assignee):

Barry Joseph Hand (5 out of 18 patents)

Brian A Bucher (5 out of 6 patents)

Edward M Desimone, Iii (5 out of 11 patents)

4. Roland R Franke (5 out of 7 patents)

5. Rex T Gallagher (5 out of 10 patents)

6. Christopher D Howe (5 out of 6 patents)

7. John S Juchum (5 out of 7 patents)

8. Marc A Plante (5 out of 5 patents)

9. Dong S Yang (5 out of 6 patents)

10. Kazuhito Fujiyama (5 out of 7 patents)

11. Tatsuji Seki (5 out of 7 patents)

12. T G Sambandam (4 out of 4 patents)

13. James Harvey Johnson (4 out of 12 patents)

14. Gilbert Gorr (3 out of 10 patents)

15. Harald Heckenmüller (2 out of 5 patents)

15 patents: Sort by Forward Citations

1. 10822628 - Production of thapsigargins bycell suspension culture (2020-11-03),

2. 10172306 - Production of ingenol, ingenol esters and/or tiglian-3-one derivatives by euphorbiaceae plant cell suspension cultures (2019-01-08),

3. 9926287 - Purification of taxanes (2018-03-27),

4. 9574218 - Method of co-expressing galactosyltransferase and a glycoprotein in a transgenic plant cell and sialylating the glycoprotein for production of glycoprotein having human-type sugar chain (2017-02-21),

5. 9527825 - Purification of taxanes (2016-12-27),

6. 9303004 - Purification of taxanes (2016-04-05),

7. 8877501 - Production of alkaloids by liliaceae cell culture (2014-11-04),

8. 8853370 - Plant-produced glycoprotein comprising human-type sugar chain (2014-10-07),

9. 8735656 - Method of expressing galactosyltransferase and inhibiting xylosyltransferase or fucosyltransferase in a transgenic plant cell for secretory production of glycoproteins having human-type sugar chains (2014-05-27),

10. 8703982 - Purification of taxanes (2014-04-22),

11. 8338143 - [object Object] (2012-12-25),

12. 8309795 - Method for secretory production of glycoprotein having human-type sugar chain using plant cell (2012-11-13),

13. 8241909 - Method for manufacturing glycoproteins having human-type glycosylation (2012-08-14),

14. 8106169 - Plant production of immunoglobulins with reduced fucosylation (2012-01-31),

15. 7897796 - Purification of taxanes and taxane mixtures using polyethyleneimine-bonded resins (2011-03-01),

Phyton Holdings, LLC, based in Fort Worth, Texas, specializes in the development and commercialization of innovative solutions in the biotechnology sector. The company focuses on advancing technologies that enhance agricultural productivity and sustainability, leveraging research in plant science and genetic engineering. With a commitment to improving crop resilience and yield, Phyton Holdings aims to address global food security challenges while promoting environmentally friendly practices in agriculture.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

15 Patents

#52 in Fort Worth, TX

#1,296 in Texas

#21,033 in US

#39,880 in the World

Fort Worth, TX, United States of America

Phyton Holdings, LLC

Forward Citations = 39

44 inventors:

Barry Joseph Hand (5 out of 18 patents)

Brian A Bucher (5 out of 6 patents)

Edward M Desimone, Iii (5 out of 11 patents)

4. Roland R Franke (5 out of 7 patents)

5. Rex T Gallagher (5 out of 10 patents)

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