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Ralph-Peter Hegler — 45 Patents

UNUnknown: 20 patents #199 of 83,584Top 1%

Bad Kissingen, DE: #2 of 61 inventorsTop 4%

Overall (All Time): #64,393 of 4,157,543Top 2%

45 Patents All Time

Ralph-Peter Hegler has been granted 45 US patents while listed as an inventor at Unknown. The first was granted in 1980 and the most recent in March 2020. Ralph-Peter Hegler ranks #64,393 of 4,157,543 US inventors in our database (top 1.5%). Patent records list Ralph-Peter Hegler in Bad Kissingen, DE.

Patents per Year

Issued Patents All Time

Showing 1–25 of 45 patents

Patent #	Title	Co-Inventors	Date
10583596	Injection head for an apparatus for the production of a twin-wall pipe	—	2020-03-10
8899956	Device for producing pipes made of thermoplastic	—	2014-12-02
8794948	Apparatus for the continuous production of a twin wall pipe with an integral socket	—	2014-08-05
8783299	Method of and apparatus for continuously producing a twin-wall pipe comprising pipe socket and twin-wall pipe	—	2014-07-22
8178034	Method and device for the continuous production of a plastic compound pipe comprising a pipe socket	—	2012-05-15
7600793	Twin-wall pipe with a ventilation zone between a socket and an adjacent elevation	—	2009-10-13
7517210	Apparatus for the manufacture of compound pipes	—	2009-04-14
7238317	Method of continuously producing a twin-wall pipe with a ventilation zone between a socket and an adjacent elevation	—	2007-07-03
6939503	Method and apparatus for the manufacture of pipes of thermoplastics with transverse profile features	—	2005-09-06
6773253	Device for producing profiled tubes consisting of synthetic material	—	2004-08-10
6578608	Pipe construction kit	—	2003-06-17
6457965	Apparatus for the manufacture of corrugated plastic pipes	—	2002-10-01
6458311	Method for the continuous manufacture of a twin-wall pipe having a pipe socket	—	2002-10-01
6343623	Sealing ring for connecting the spigot of a corrugated pipe with a pipe socket having a smooth inside wall	—	2002-02-05
6323425	Method of producing a one-piece corrugated jacket pipe from thermoplastic and method of inserting at least one electric line into such a corrugated jacket pipe	Maximilian Groebmair	2001-11-27
6079451	Integral corrugated jacket pipe and method of producing the same	—	2000-06-27
6044591	Drain and inspection manhole for liquid conduits and manhole section therefor	—	2000-04-04
6045347	Apparatus for the production of plastic compound pipes	—	2000-04-04
5996635	Composite pipe with a socket and method for its manufacture	—	1999-12-07
5992469	Composite pipe with integral socket	—	1999-11-30
5976298	Method of producing multilayer thermoplastic pipe	Wilhelm Hegler	1999-11-02
5953974	Apparatus for cutting slots in corrugated and twin-wall pipes	Wilhelm Hegler	1999-09-21
5693347	Apparatus for the manufacture of pipes of thermoplastic plastics having transverse profile features	—	1997-12-02
5560941	Apparatus for the manufacture of corrugated pipes of thermoplastic plastics	Wilhelm Hegler	1996-10-01
5511964	Apparatus for the production of plastic pipes	Wilhelm Hegler	1996-04-30