Food Chemistry and Preservation Patent Memory

Food preservation, sterilization, and emulsion patents connect Black laboratory work to industrial chemistry and company assignment.

The connection

Food chemistry and preservation

Food chemistry patent records can show laboratory work, preservation systems, and industrial process claims. They cannot, by themselves, prove company ownership by the inventor, full biography, market adoption, or economic benefit.

Related patent holders

Lloyd A. Hall / 1882834 / 2107697

Patent records

Patent dates and named holders remain distinct from unresolved chronology claims.

Chronological rank unresolvedutility patentmedium high

1882834: Asphalt Emulsion and Manufacture Thereof

Lloyd A. Hall / 1932-10-18

Edwin E. Mortell is named as co-inventor and J. W. Mortell Co. as assignee on this record.

Residence: Chicago, Illinois
Category: industrial chemistry / emulsion systems
Source status: medium high
Cluster: Food chemistry and preservation
Co-inventors: Edwin E. Mortell
Assignee: J. W. Mortell Co. / corporate assignee
Primary sources: 1 mapped

Chronological rank unresolvedutility patentmedium high

2107697: Sterilizing Foodstuffs

Lloyd A. Hall / 1938-02-08

Carroll L. Griffith is named as co-inventor and Griffith Laboratories as assignee on this record.

Residence: Chicago, Illinois
Category: food chemistry / preservation
Source status: medium high
Cluster: Food chemistry and preservation
Co-inventors: Carroll L. Griffith
Assignee: Griffith Laboratories / corporate assignee
Primary sources: 1 mapped

Proof limits

What this cluster can and cannot prove.

What these records can prove

The patent numbers, titles, dates, co-inventors, and assignees named on Hall's attached grants.
Food-preservation and industrial-chemistry invention categories.
The need to separate inventor credit from company assignment and commercialization claims.

What remains under review

Full laboratory-career and company context.
Commercial adoption and product/process impact claims.
Any broader public-memory claims beyond the patent rows.

Co-inventor and assignee notes

Hall's attached rows preserve Edwin E. Mortell and Carroll L. Griffith as co-inventors.
J. W. Mortell Co. and Griffith Laboratories appear as corporate assignees.
Corporate assignment does not establish an inventor's personal ownership, licensing income, or economic benefit.

Open source ledger Submit a correction

Food Chemistry and Preservation Patent Memory