David Mitchell — 15 Patents at Roche Vitamins

David Mitchell has been granted 15 US patents while listed as an inventor at Roche Vitamins. The first was granted in 1986 and the most recent in August 2019. David Mitchell ranks #307,048 of 4,157,543 US inventors in our database (top 7.4%). Patent records list David Mitchell in Dereham, IL, GB.

Patents per Year

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #	Title	Co-Inventors	Date
10376820	Removing solids from a flowing fluid using a care-free pumped or gravity flow rotating drum screen with stationary stabilization assemblies	Serdar Umur, Walter B. Stanek	2019-08-13
9616366	Care-free pumped or gravity flow rotating drum screen with stationary stabilization pad assemblies	Serdar Umur, Walter B. Stanek	2017-04-11
9381527	Liquid delivery apparatus	—	2016-07-05
8795401	Filter with cyclone separation means	John Edward Charles Gwynn, John McCallum, Michael Hogg, Maciej Adrian Zyga	2014-08-05
7048145	Liquid delivery apparatus	—	2006-05-23
6938650	Filling apparatus	—	2005-09-06
6699704	Heat tolerant phytases	Adolphus van Loon	2004-03-02
6681812	Attachment for a vacuum pump	—	2004-01-27
6446683	Attachment for a vacuum pump	Alan Grieves	2002-09-10
6358722	Heat tolerant phytases	Adolphus van Loon	2002-03-19
6291221	Heat tolerant phytases	Adolphus van Loon	2001-09-18
5927107	Method and apparatus for locking a storage container	—	1999-07-27
5316215	Liquid delivery apparatus	—	1994-05-31
4891044	Ophthalmic aspirating/irrigating device	—	1990-01-02
4628861	Metering and proportioning system for a two-component liquid resin and liquid hardener adhesive	—	1986-12-16

David Mitchell — 15 Patents

Patents per Year

Issued Patents All Time

Patent Widget