Inventor

Donald F. Holloway

Inventor

Milwaukee, WI, US

Overview

2→

Patents

1977–1978

Patent span

General tagging of new technological developments

Primary field (CPC Y)

Patents· 2 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

Y10Sprimary

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests22%

A23JProtein compositions for foodstuffs11%

B29CShaping or joining of plastics11%

B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form11%

C01GCompounds containing metals not covered by subclasses c01d or c01f11%

C14CChemical treatment of hides, skins or leather, e.g. tanning, impregnating, finishing11%

D06NWall, floor, or like covering materials, e.g. linoleum, oilcloth, artificial leather, roofing felt, consisting of a fibrous web coated with a layer of macromolecular material11%

Y10TTechnical subjects covered by former us classification11%

PatentTitleYear

4,100,154'Process for recovery and separation of nutritious protein hydrolysate and chromium from chrome leather scrap'1978 4,061,822'Crushed foam coated leather and leather-like materials'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977Patents assigned to ROHM & HAAS (1)· patent assignee history

1977–1978Based in Milwaukee, WI, US· patent location history

1978Patents assigned to A L GEBHARDT COMPANY (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
A L GEBHARDT COMPANY	1	1978
ROHM & HAAS	1	1977

Locations

Location	Patents	Span
Milwaukee, WI, US	2	1977–1978