Patents

US 10606093 B1: Biased fast axis retarder system

Granted
2020-03-31
Filed
2018-03-16 application 15932578
Type
Utility · 19 claims
Elsewhere
Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗

Abstract

A retarder that comprises at least two plates, each of which comprise two surfaces that are parallel to, or substantially parallel to one another, said plates being tipped with respect to one another so that the surfaces of one thereof are not parallel to the surfaces of the other, each said plate further comprising a biased fast axis that is neither parallel to, or perpendicular to surfaces of said plates.

Source: PVGPATDIS, file of 2026-04-10 (ipg200331.xml).

Assignees

AssigneeTypePlaceAlso on furp.orgSource
J.A. WOOLLAM CO., INC. 108 patentsUS company or organizationLincoln, NEJ.A. WOOLLAM CO., INC. State business registration EXACT high confidence: identical full name and statePVGPATDIS, file of 2026-04-10

Inventors

InventorPlacePatentsPerson pageSource
Craig M. HerzingerLincoln, NE36PVGPATDIS, file of 2026-04-10

CPC categories

SubclassCategoryFirst groupSource
G02BOptical elements, systems or apparatusG02B27/28PVGPATDIS, file of 2026-04-10

Cooperative Patent Classification, as currently assigned (one row per subclass).

Assignments and security interests

RecordedWhatFromToReel/frameSource
2018-09-14Assignment
Assignment of assignor's interest
HERZINGEER, CRAIG M. signed 2018-05-14J. A. WOOLLAM CO., INC. LINCOLN, NE46933/803ECORSEXC, 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.