Inventor
David A. Marsh
Inventor
Fort Worth, TX, US
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A61Kprimary
A61KPreparations for medical, dental or toiletry purposes24%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations18%
A61FFilters implantable into blood vessels12%
A61LMethods or apparatus for sterilising materials or objects in general12%
C11DDetergent compositions12%
C07JSteroids6%
C07KPeptides6%
G01NInvestigating or analysing materials by determining their chemical or physical properties6%
Y10TTechnical subjects covered by former us classification6%
PatentTitleYear
9,919,028'Autoclavable suspensions of cyclosporin A Form 2'20188,753,666'Punctal plugs and methods of delivering therapeutic agents'20148,158,609'Use of cyclodextrins as an active ingredient for treating dry AMD and solubilizing drusen'20128,084,054'Bioerodible film for ophthalmic drug delivery'20116,413,245'Sub-tenon drug delivery'20025,603,897'Method for indicating neutralization of contact lens disinfecting solutions'19975,451,303'Cleaning hydrophilic contact lenses by electrochemical means'19955,364,637'Method and composition for cleaning contact lenses with cyclodextrins'19944,235,893'Ester derivatives of 4-hydroxy-4-androstene-3,17-dione and a method for inhibiting estrogen biosynthesis'1980Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1980Based in Shrewsbury, MA, US· patent location history
1994–1997Patents assigned to BAUSCH & LOMB (3)· patent assignee history
1994–1997Based in Rochester, NY, US· patent location history
2002–2014Based in Fort Worth, TX, US· patent location history
2011–2014Patents assigned to MARSH DAVID ALLEN (3)· patent assignee history
2011–2014Patents assigned to TIAN YOUQIN (3)· patent assignee history
2011–2012Patents assigned to NOVARTIS AG (2)· patent assignee history
2014Patents assigned to ALCON RES LTD (1)· patent assignee history
2018Based in Irvine, CA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BAUSCH & LOMB | 3 | 1994–1997 |
| MARSH DAVID ALLENself | 3 | 2011–2014 |
| TIAN YOUQIN | 3 | 2011–2014 |
| NOVARTIS AG | 2 | 2011–2012 |
| ALCON RES LTD | 1 | 2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Fort Worth, Texas, US | 4 | 2002–2014 |
| Rochester, New York, US | 3 | 1994–1997 |
| Irvine, California, US | 1 | 2018 |
| Shrewsbury, Massachusetts, US | 1 | 1980 |