MESSER GRIESHEIM INDUSTRIES, INC.
Patent Owner
Stats
- 1 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Mar 27, 2001 most recent publication
Details
- 1 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 242 Total Citation Count
- Jul 22, 1977 Earliest Filing
- 19 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
Rank in Class
Top Patents (by citation)
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Recent Publications
- No Recent Publications to Display
Recent Patents
Patent #
Title
Filing Date
Issue Date
Intl Class
5388650 Non-cryogenic production of nitrogen for on-site injection in downhole drillingJun 14, 93Feb 14, 95[E21B]
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
6206113 Non-cryogenic nitrogen for on-site downhole drilling and post drilling operations apparatusExpiredSep 08, 99Mar 27, 01[E21B]
6041873 Non-cryogenic nitrogen for on-site downhole drilling and post drilling operationsExpiredOct 15, 98Mar 28, 00[E21B]
5862869 Non-cryogenic nitrogen for on-site downhole drilling and post drilling operationsExpiredOct 06, 97Jan 26, 99[E21B]
5749422 Non-cryogenic nitrogen for on-site downhole drilling and post drilling operationsExpiredSep 04, 96May 12, 98[E21B]
5410886 Method and apparatus for supplementing mechanical refrigeration by the controlled introduction of a cryogenExpiredDec 08, 92May 02, 95[F25D]
5198039 Apparatus and method for automatically positioning and operating non-contact tool holdersExpiredMay 07, 92Mar 30, 93[B23K]
4923527 Apparatus and method for slag-free cutting of billets and the likeExpiredMar 14, 89May 08, 90[B23K]
4887797 Slag flushing and water level control system for a metal cutting apparatusExpiredDec 05, 88Dec 19, 89[B23K]
4539035 Method and apparatus for improving oxygen burner performance in a glass furnaceExpiredMar 26, 84Sep 03, 85[C03B]
4538046 Precise positioning for a welding electrode which follows a three dimensional weld pathExpiredApr 22, 82Aug 27, 85[B23K]
4510760 Compact integrated gas phase separator and subcooler and processExpiredMar 02, 84Apr 16, 85[F17C]
4379963 Welding apparatus designed particularly for use within a confined areaExpiredJan 05, 81Apr 12, 83[B23K]
Top Inventors for This Owner
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