Company Filing History:

7 out of 719

Essilor International (compagnie Generale D'optique)

patents

4 out of 682

National Starch and Chemical Investment Holding Corporation

patents

1 out of 2,925

University of Florida Research Foundation, Incorporated

patents

4. 1 out of 843

University of Georgia Research Foundation, Inc.

patents

5. 1 out of 832,680

Other

patents

where one patent can have more than one assignee

Years Active: 1991-2010

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13 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7732507 - Spirotetrathiocarbamates and spirooxothiocarbamates (2010-06-08),

2. 7446228 - Thiophosphine compounds (2008-11-04),

3. 7378556 - Process for making thiophosphine compounds (2008-05-27),

4. 7253213 - Anionic and Lewis base photopolymerization process and its use for making optical articles (2007-08-07),

5. 7129321 - Thiophosphine compounds and methods of making polymerizable compositions containing them and their use for making ophthalmic lenses (2006-10-31),

6. 6911485 - Anionic and Lewis base photopolymerization process and its use for making optical articles (2005-06-28),

7. 6635195 - Cationic photopolymerization of diepisulfides and application to the manufacture of optical lenses (2003-10-21),

8. 6592801 - Photopolymerization of episulfides using metal complexes and its use for making ophthalmic lenses (2003-07-15),

9. 6262299 - Zwitterionic monomer having amino-multicarboxylic acid functionality (2001-07-17),

10. 5501851 - Emulsion polymers for use in hair fixatives (1996-03-26),

11. 5239008 - Graft polymerization process using microfluidization in an aqueous (1993-08-24),

12. 5030507 - Formaldehyde-free nonwoven binder composition (1991-07-09),

13. 4985511 - Siloxane-polypivalolactone thermoplastic elastomers (1991-01-15),

Title: Biography of Sirisoma Wanigatunga

Introduction: Sirisoma Wanigatunga is an accomplished inventor based in Largo, Florida, known for his significant contributions to the field of chemistry. He holds a total of 13 patents, showcasing his innovative spirit and expertise in developing new compounds.

Latest Patents: Among his latest inventions are spirotetrathiocarbamates and spirooxothiocarbamates, which are compounds with excellent optical properties. These compounds are characterized by their unique formulas, allowing for the creation of optical lenses and other optically transparent articles. Additionally, he has developed thiosphosphine compounds that can be utilized in the production of ophthalmic lenses.

Career Highlights: Sirisoma has worked with notable companies such as Essilor International and National Starch and Chemical Investment Holding Corporation. His experience in these organizations has contributed to his expertise in the field of optics and chemical compounds.

Collaborations: Throughout his career, Sirisoma has collaborated with talented individuals, including Yassin Yusef Turshani and Aref Jallouli. These partnerships have fostered innovation and the development of groundbreaking technologies.

Conclusion: Sirisoma Wanigatunga's work exemplifies the spirit of innovation in the field of chemistry. His patents and collaborations reflect his commitment to advancing optical technologies and improving the quality of optically transparent

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1 patent (EPO):

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Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.