Greg Williams

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Pella, IA, US

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Patents Grantslast 30 patents

Information Patent Grant
Sizing screens for comminuting machines
- Patent number 10,335,796
- Issue date Jul 2, 2019
- Vermeer Manufacturing Company
- Duane Allen Harthoorn
- B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information Patent Grant
Material reducing apparatus including an automatically positioned t...
- Patent number 10,086,382
- Issue date Oct 2, 2018
- Vermeer Manufacturing Company
- Duane Harthoorn
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Grant
Deflection structure for tub grinder
- Patent number 9,505,007
- Issue date Nov 29, 2016
- Vermeer Manufacturing Company
- Duane Allen Harthoorn
- B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...

Patents Applicationslast 30 patents

Information Patent Application
SIZING SCREENS FOR COMMINUTING MACHINES
- Publication number 20170165676
- Publication date Jun 15, 2017
- Vermeer Manufacturing Company
- Duane Allen Harthoorn
- B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information Patent Application
MATERIAL REDUCING APPARATUS INCLUDING AN AUTOMATICALLY POSITIONED T...
- Publication number 20150251187
- Publication date Sep 10, 2015
- Vermeer Manufacturing Company
- Duane Harthoorn
- B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information Patent Application
SIZING SCREENS FOR COMMINUTING MACHINES
- Publication number 20130200188
- Publication date Aug 8, 2013
- Vermeer Manufacturing Company
- Duane Allen Harthoorn
- B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information Patent Application
DEFLECTION STRUCTURE FOR TUB GRINDER
- Publication number 20130200189
- Publication date Aug 8, 2013
- Vermeer Manufacturing Company
- Duane Allen Harthoorn
- B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...