Inventor
Robert M. Chapman
Inventor
Lockport, NY, US
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E04Bprimary
E04BGeneral building constructions43%
E04FFinishing work on buildings, e.g. stairs, floors14%
A47BTables7%
B23KSoldering or unsoldering7%
E04CStructural elements7%
G01SRadio direction-finding7%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%
Y10TTechnical subjects covered by former us classification7%
PatentTitleYear
5,526,323'Method and apparatus for interpretation of sonar signals'19965,107,651'Method of mounting wallboard'19925,058,355'Panels with laminated strips for clips'19915,042,213'Channel utility notch'19914,907,773'Adjustable mounting surface'19904,843,771'Wall trim member'19894,843,784'Integral wallboard and stud'19894,704,837'Wall construction'19874,700,515'Wall panel leveling support clip'19874,371,106'Method of and stand for disassembling structures such as radiators'1983Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1983Patents assigned to CHAPMAN ROBERT M (1)· patent assignee history
1983Based in Mohnton, PA, US· patent location history
1987–1992Patents assigned to NAT GYPSUM CO (8)· patent assignee history
1987–1992Based in North Tonawanda, NY, US· patent location history
1987Based in Appleton, NY, US· patent location history
1989–1991Based in Lockport, NY, US· patent location history
1996Patents assigned to GEN DYNAMICS CORP (1)· patent assignee history
1996Based in Groton, CT, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NAT GYPSUM CO | 8 | 1987–1992 |
| CHAPMAN ROBERT Mself | 1 | 1983 |
| GEN DYNAMICS CORP | 1 | 1996 |
Locations
| Location | Patents | Span |
|---|---|---|
| Lockport, New York, US | 4 | 1989–1991 |
| North Tonawanda, New York, US | 3 | 1987–1992 |
| Groton, CT, US | 1 | 1996 |
| Appleton, New York, US | 1 | 1987 |
| Mohnton, Pennsylvania, US | 1 | 1983 |