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Patent holder profile

Percy L. Julian and the sterol-recovery patent record

Julian's route treats soybean sterols, industrial chemistry, and medicine-adjacent materials as a source-led patent record with Glidden assignment and co-inventor credit visible.

Why this belongs on CultureUp

Julian 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 2 / not final rankStatus: source_reviewedSource grade: B+

Patent: 2273046: Process for Recovering Sterols
Issue date: 1942-02-17
Place: Chicago, Illinois
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: 2 / not final rank
Cluster: Chemistry, medicine, and materials
Co-inventors: John Wayne Cole
Assignee: The Glidden Company / 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 places Black patent memory inside laboratory chemistry, soybean concentrates, sterol recovery, industrial materials, and medical-material pathways without reducing Julian to a single shorthand.

What the public record supports

U.S. Patent No. 2273046, published February 17, 1942.
John Wayne Cole as co-inventor.
The Glidden Company as assignee.
Process for recovering sterols invention category.

What remains open

Additional Julian patent-family rows.
Glidden laboratory context and assignment records.
Medical and industrial impact claims beyond the attached patent record.

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

2273046 was issued on 1942-02-17 for Process for Recovering Sterols. The route preserves John Wayne Cole as co-inventor. The route also names The Glidden Company 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

Chicago, Illinois 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 2Not public rankutility patenthigh

2273046: Process for Recovering Sterols

Percy L. Julian / 1942-02-17

Sprint 6 advanced science record. The patent row preserves John Wayne Cole as co-inventor and The Glidden Company as assignee.

Residence: Chicago, Illinois
Category: steroid chemistry / industrial materials
Source status: high
Chronology handling: advanced_science_candidate
Cluster: Chemistry, medicine, and materials
Co-inventors: John Wayne Cole
Assignee: The Glidden Company / corporate assignee
Primary sources: 1 mapped

Source trail

Claims stay tied to source limits.

Steroid chemistry and industrial materials

Sources for sterol recovery, pharmaceutical-material pathways, industrial chemistry, and source limits around laboratory and corporate settings.

patent text mirrorsteroid chemistry patent record

US2273046A - Process for Recovering Sterols

Google Patents / 1942 patent record

Supports: Shows Percy L. Julian and John Wayne Cole as inventors, The Glidden Company as assignee, and a process for recovering sterols patent published February 17, 1942.
Limit: The patent record verifies invention data, co-inventor names, assignee, and issue date. It does not by itself prove full biography, all steroid-chemistry work, medical adoption, commercialization, economic benefit, sole inventorship, or personal ownership.
Last checked: 2026-06-09
Source URL: https://patents.google.com/patent/US2273046A/en