I was definitely thinking about USA sales in my above post. Worldwide? I’m not qualified to answer. Hell I wasn’t qualified to answer the first time up there

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US sales only?
Before 2004, my guess would be Imperial-Schrade, to include the various family brands of Hammer Brand, Ulster and Camillus.
Case has been around for a long time. However, growing up on the west side of the Mississippi River, I never heard of them. "Case" was a tractor and farm implement company. I'm not sure if they also made things like a backhoe.
There were no Case knives at our hardware, sporting goods, or Farm & Fleet stores. Victorinox and Wenger, Opinel, the various Imperial Schrade brands, Western, (folders and fixed blades) Utica, Colonial, Buck, a few Solingen, and Sheffield brands, some now defunct USA brands like CATT and Robeson, a couple "no names" (probably made by Imperial, Ulster, Colonial, and whatever Japanese companies who were exporting at the time.) Yes. We had those.
Honestly, I don't believe Case Cutlery marketed their wares west of the Mississippi River, until the mid-late 1980's to early 1990's.
I don't recall any ads for them in my dad's 'Field and Stream', 'Outdoor Life', or his other such magazines, nor in my 'Boy's Life' Scouting magazine, in the 1960's and 1970's, nor in his 'Gun Digest's' during that time frame, for that matter.
I'm SURE both WR and Sons put ads in those magazines, and the annual 'Gun Digest', just not in the ones distributed on the west side of the river.
Even after I relocated to Smoggy Southern California after High School, I did not see any Case knives for sale.
As far as hunting knives is concerned, for several decades the Western L/F/W66 "owned" the deer hunting woods and fields in North America,
possibly for the first half decade after the venerable Buck 110 was introduced.
(Let's be honest, a lot of 110's since they hit the market have never gone hunting or camping - even until today.) (Yes, I am aware many went to war, even after Vietnam.) They were a heavy-duty work knife for I'd guess the majority of owners. I know I left my 110 (and Old Timer 7OT) home in favor of my Western L66 when I went hunting, back when I was in high school and college.
I didn't take my 110 (or Old Timer 7OT) camping or hunting until 1995, when I was on a 2 year ... let's call it a "sabbatical" ... from work, (I was hiding from The Junior Boys gang, located in Wichita, KS) in Southwest Missouri. (Long story.)
Post 2004? Buck would be my guess, due to the 110 and 119.