Inventor

Ehrhart Schulze

Inventor

Fellbach, DE

Overview

11→

Patents

1977–1985

Patent span

Performing operations

Primary field (CPC B)

Patents· 11 as inventor

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

B31Bprimary

B31BMaking containers of paper, cardboard or material worked in a manner analogous to paper24%

Y10TTechnical subjects covered by former us classification21%

B29CShaping or joining of plastics18%

B65HHandling thin or filamentary material, e.g. sheets, webs, cables16%

B26DCutting8%

B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts5%

B26FPerforating3%

B29LIndexing scheme associated with subclass b29c, relating to particular articles3%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests3%

PatentTitleYear

4,518,378'Apparatus for the manufacture of plastic bags'1985 RE030956'Welding machine for thermoplastic web'1982 4,317,656'Article-deflecting switching means for a system of article conveyors'1982 4,302,276'Machine for welding a moving web of material by means of a movable welding tool'1981 4,300,977'Machine for welding thermoplastic sheets'1981 4,277,241'Apparatus for forming bags of thermoplastic material'1981 4,268,343'Machine for working on a web of material by means of a welding tool'1981 4,207,136'Welding machine for thermoplastic web'1980 4,195,960'Conveyor with downward step for stacked sheets of film material'1980 4,160,396'Apparatus for the perforation of tracks of goods'1979 4,030,652'Equalizing device for movements in packing machines, especially machines for making bags and the like'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–1979Patents assigned to STIEGLER MASCHF FELIX (2)· patent assignee history

1977–1985Based in Fellbach, DE· patent location history

1980–1985Patents assigned to STIEGLER KARL HEINZ (6)· patent assignee history

1980Patents assigned to SCHULZE EHRHART (1)· patent assignee history

1981Patents assigned to STEIGLER KARL HEINZ (1)· patent assignee history

1982Based in Stuttgart, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
STIEGLER KARL HEINZ	6	1980–1985
STIEGLER MASCHF FELIX	2	1977–1979
SCHULZE EHRHARTself	1	1980
STEIGLER KARL HEINZ	1	1981

Locations

Location	Patents	Span
Fellbach, DE	10	1977–1985
Stuttgart, DE	1	1982