LexDanaLexDanabeta
Inventor

Dave C. Hempfling

Inventor
Chicago, IL, US

Overview

5→
Patents
1996–2004
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 5 as inventor

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

E04Dprimary
E04DRoof coverings40%
F16BDevices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges40%
B25BTools or bench devices not otherwise provided for, for fastening, connecting, disengaging, or holding20%
PatentTitleYear
6,729,522'Fastener driving tool having improved bearing and fastener guide assemblies'20046,382,892'Wall anchor with improved drilling tip'20026,293,744'Fastener system including a fastener and a cap'20015,707,191'Stress plate with angled hole'19985,562,380'Protective seam plate'1996

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1996–2004Patents assigned to ILLINOIS TOOL WORKS (4)· patent assignee history
1996–2004Based in Chicago, IL, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ILLINOIS TOOL WORKS41996–2004
Locations
LocationPatentsSpan
Chicago, Illinois, US51996–2004