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Patent holder profile

Bettye W. Greene and the polymer chemistry patent record

Greene's route reads Dow-assigned polymer chemistry through a latexes patent that preserves Sun-Lin Chen as co-inventor and avoids ownership overclaiming.

Why this belongs on CultureUp

Greene is a public-record memory story.

This belongs on CultureUp because the patent record connects invention to place, public institutions, work systems, laboratories, employers, federal or corporate assignment, and the limits of public records.

Sprint 6 priority 7 / not final rankStatus: source_reviewedSource grade: B+

Patent: 4506057: Stable Latexes Containing Phosphorus Surface Groups
Issue date: 1985-03-19
Place: Midland, Michigan
Record strength: Patent-record facts are attached with at least one public context source. CultureUp still separates patent proof from biography, adoption, commercialization, and identity claims.
Identity evidence: Public context source attached where available; CultureUp does not use the patent row alone as race, ancestry, lineage, or Indigenous Black identity proof.
Sprint priority: 7 / not final rank
Cluster: Chemistry, medicine, and materials
Co-inventors: Sun-Lin Chen
Assignee: Dow Chemical Co. / corporate assignee
Needed before promotion: Promotion language should remain limited until source-led context, assignment, co-inventor, and commercialization review is complete.
Why this record matters: The record brings industrial polymer research, coatings/materials context, corporate labs, and Black women in advanced chemistry into the patent archive with source limits.

What the public record supports

U.S. Patent No. 4506057, published March 19, 1985.
Sun-Lin Chen as co-inventor.
Dow Chemical Co. as assignee.

What remains open

Public biography and Dow career context.
Industrial adoption and product-use claims.
Patent-family context beyond this row.

Article profile

Read the person, place, invention, and record separately.

CultureUp keeps each layer visible so a patent record does not get stretched into claims the source trail cannot support.

The patent record

4506057 was issued on 1985-03-19 for Stable Latexes Containing Phosphorus Surface Groups. The route preserves Sun-Lin Chen as co-inventor. The route also names Dow Chemical Co. as corporate assignee, because inventor status and assignment are different public-record facts.

The person in the record

The attached public context sources support a reader-facing profile frame. Any deeper life history, family record, school record, employment file, or community memory needs its own source trail.

Place attached to the claim

Midland, Michigan is the public place anchor used for this route. CultureUp does not infer local family continuity from the patent row alone.

The invention

The invention is summarized from the public patent title and source trail. Technical, market, institutional, and adoption claims stay limited to what the attached sources can support.

Business, labor, and use

Modern patent records often separate inventor, employer, assignee, licensee, and beneficiary. CultureUp keeps those categories apart instead of treating a patent as proof of ownership, wealth, adoption, or public impact.

What the record cannot prove

The patent record does not by itself prove full biography, race, ancestry, Indigenous Black identity, commercialization, institutional adoption, economic benefit, modern product lineage, or community memory.

Identity and correction note

CultureUp treats this as Black American patent memory only through public, reviewable sources. The page does not certify ancestry, descent, tribe, nationality, family history, or private identity.

Send stronger patent images, assignment records, employer records, licensing documents, public biographies, or source corrections through CultureUp's correction path.

Patent records do not prove final rank, private identity, solo credit when co-inventors appear, employment ownership, commercialization, adoption, or later public impact.

Indexable as a source-led Sprint 6 profile with visible source limits.

Employer, assignee, and inventor status are not interchangeable. CultureUp names assignees when the patent record does.

Do not use this page to make absolute first, ownership, adoption, or commercialization claims without a separate source trail.

Patent records

Grant trail

Grant rank and unique-holder rank are shown separately so repeat patentees do not distort the chronological sequence.

advanced_science_candidateSprint priority 7Not public rankutility patentmedium high

4506057: Stable Latexes Containing Phosphorus Surface Groups

Bettye W. Greene / 1985-03-19

Sprint 6 advanced science record. The patent row preserves Sun-Lin Chen as co-inventor and Dow Chemical Co. as assignee.

Residence: Midland, Michigan
Category: polymer chemistry / industrial materials
Source status: medium high
Chronology handling: advanced_science_candidate
Cluster: Chemistry, medicine, and materials
Co-inventors: Sun-Lin Chen
Assignee: Dow Chemical Co. / corporate assignee
Primary sources: 1 mapped

Source trail

Claims stay tied to source limits.

Polymer chemistry and corporate assignee records

Sources for industrial polymer research where corporate assignment, co-inventors, and inventor credit must remain visibly distinct.

patent text mirrorco-inventor corporate polymer patent record

US4506057A - Stable Latexes Containing Phosphorus Surface Groups

Google Patents / 1985 patent record

Supports: Shows Bettye W. Greene and Sun-Lin Chen as inventors, Dow Chemical Co. as assignee, and a stable latexes patent published March 19, 1985.
Limit: The patent record verifies invention data, co-inventor names, assignee, and issue date. It does not by itself prove full biography, industrial adoption, commercialization, public memory, economic benefit, sole inventorship, or personal ownership.
Last checked: 2026-06-09
Source URL: https://patents.google.com/patent/US4506057A/en