Patents
US 7777943 B2: Astrometry and photometry with coronagraphs
- Granted
- 2010-08-17
- Filed
- 2007-03-01 application 11712613
- Type
- Utility · 9 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
In a first exemplary embodiment of the present invention, an optical device comprises a telescope, a coronagraph device coupled to the telescope and having a focal plane occulting mask to provide a coronagraphic image, and a reticulate grid element arranged in a light path propagated through the telescope, at a location relative to the coronagraphic image, to create controlled fiducial spots in the coronagraphic image.
Source: PVGPATDIS, file of 2026-04-10 (ipg100817.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| American Museum of Natural History 3 patents | US company or organization | New York, NY | AMERICAN MUSEUM OF NATURAL HISTORY Nonprofit EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Anand Sivaramakrishnan | Huntington, NY | 3 | PVGPATDIS, file of 2026-04-10 | |
| Ben R. Oppenheimer | New York, NY | 3 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G02B | Optical elements, systems or apparatus | G02B23/12 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2007-05-25 | Assignment Assignment of assignor's interest | OPPENHEIMER, BEN R. signed 2007-04-24 SIVARAMAKRISHNAN, ANAND signed 2007-04-24 | AMERICAN MUSEUM OF NATURAL HISTORY NEW YORK, NY | 19366/49 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.