Equipment
Latest patent filings: Sound-tuning, sound-analysis and adjustable irons
It’s been a few months since we took a peek at the technologies major OEMs are working on. In an ever-increasingly competitive space amid an industry in contraction, OEMs seem to be digging deeper and going bolder to attract consumers (Callaway’s driver with a spoiler from the July edition of this series comes to mind here).
In a survey of what’s recently been made available for public consumption, that trend continues.
Let’s take a look at how our friends in Fairhaven, Carlsbad, Fort Worth and Phoenix are pushing the envelope.
TaylorMade: Multi-layer face insert

TaylorMade is working on a driver with a multi-layer face insert that includes the prepreg plies technology we discussed in a previous installment in this series. The filing also makes mention of an “undercut fill structure,” which “can include at least three ribs equidistantly spaced from each other.”
TaylorMade: Contrast-enhanced club heads

TMag is also looking at “contrast enhanced” crowns. As the company’s filing states, “new approaches that permit more accurate and repeatable alignment are needed.” The filing also makes clear that the both black and white crowns are being developed.
Callaway: Adjustable iron-type golf club head

Callaway is exploring a highly adjustable iron head. As you can see from the image above, multiple sections can be adjusted. The filing refers to “features that allow for the adjustment of the principal moment of inertia angle and/or turf interaction, including an adjustable weight cartridge or an adjustable sole plate and a lightweight face.”
Callaway: Multi-material putter

The Carlsbad-based company is also working on a “multiple material putter having a high moment of inertia and a low center of gravity,” according to another filing.
The filing further states: “Most putters are constructed in such a way that the head is made from a single type of parent material, such as steel. There is a need for putters that have increased moments of inertia and low centers of gravity.”
Titleist: A workable and forgiving iron

Moving on to Titleist’s R&D efforts: The company is continuing to work on cavity-backed players irons that offer more forgiveness and more workability at the same time. A lengthy paragraph from the filing lays this out in detail.
Previous game improvement club heads have relatively higher MOI-Y, at the expense of a higher MOI-SA because they are relatively large. Generally, better players have a tendency to prefer golf clubs having a lower MOI-SA so that they can control the orientation of the club head throughout the swing with greater ease….There remains a need in the art for an improved iron-type golf club. In particular, there is a need for an iron-type golf club that provides a lower MOI-SA in combination with a higher MOI-Y.
Titleist: Optimizing club heads for sound
Titleist is also working on a driver that’s sound is “is aesthetically pleasing when the golf club head impacts the golf ball.” The filing indicates that today’s large, flat driver typically produce lower frequency sounds, which golfers, according to Titleist, don’t like.
Ping: Tuneable everything

The denizens of Phoenix are toying with irons with multiple adjustable weights, as a recent filing makes mention of. The filing further suggests that loft can be tinkered with.
Nike: Actually analyzing impact through sound
If you remember the “microwavable golf ball” Nike applied for a patent that we mentioned a few months ago, then this might not surprise you: Nike is working on technology to analyze impact sound to “determine one or more characteristics of the impact, and generating an output based on the determined impact characteristic.”
What does that mean? A few paragraphs in the filing sheds a little light on what Nike’s up to:
“The amplitudes and frequencies of the audio signal may be analyzed to determine various characteristics such as a magnitude of compression of the golf ball, an impact location on the surface and/or a speed with which the surface impacts the golf ball.
“The determined characteristics may be used, in some arrangements, to determine a golf ball impact location on the surface of the golf club head. Alternatively or additionally, the characteristics may be used to identify a type of golf ball best suited for a particular user (and/or, e.g., golf club head speed). In yet other arrangements, the determined characteristics, such as golf ball compression, may be used to insure the quality of a golf ball.
“According to other aspects, a mobile communication device may be configured to detect golf ball impact sounds and to determine the various impact characteristics. In one example, a mobile communication device may record the sound of a golf ball impact and to visually indicate the golf ball impact location against a golf club head.”
Equipment
From the GolfWRX Classifieds: Titleist Vokey Proto Wedges 54M, 60T
At GolfWRX, we are a community of like-minded individuals who all experience and express our enjoyment of the game in many ways.
It’s that sense of community that drives day-to-day interactions in the forums on topics that range from best driver to what marker you use to mark your ball. It even allows us to share another thing we all love – buying and selling equipment.
Currently, in our GolfWRX buy/sell/trade (BST) forum, @Putt4Dough is selling some prototype wedges from Vokey Wedgeworks. These include a 54 degree wedge with the M grind and a 60 degree wedge with a T grind.

From the listing:
(1) Titleist Vokey Proto Wedge 54M with a Tour Issue DGS400 shaft and Golf Pride Tour Velvet (logo down). Standard length, lie, and loft. BB&F ferrule. Raw wedge in good condition. No initials. Price is $200 shipped. Buy both wedges for $380 shipped.
(2) Titleist Vokey Proto Wedge 60T with a KBS Tour 130X shaft and Golf Pride Tour Velvet. Standard length, lie, and loft. Raw wedge in good condition. No initials. Price is $200 shipped. Buy both wedges for $380 shipped.
To check out the full listing in our BST forum, head through the link. If you are curious about the rules to participate in the BST Forum, you can learn more here: GolfWRX BST Rules.
Whats in the Bag
Ryan Palmer WITB 2026 (June)
Driver: Callaway Quantum Triple Diamond (9 degrees)
Shaft: Project X HZRDUS Smoke Blue RDX 60 TX

3-wood: TaylorMade Qi10 (15 degrees)
Shaft: Project X HZRDUS T1100 70 6.5

5-wood: TaylorMade SIM2 Max (18 degrees)
Shaft: Project X HZRDUS Smoke Black RDX 80 TX

Irons: Srixon ZXiU (23 degrees), Srixon Z785 MB (5-PW)
Shafts: Project X HZRDUS Smoke Black RDX 100 6.5 (4), KBS Tour 130 X

Wedges: Titleist Vokey Design SM11 (50-08F, 54-10S, 58-04T @59)
Shafts: KBS Tour 130 X

Putter: Odyssey Dual Force Rossie II

Ball: Titleist Pro V1x
Grips: Golf Pride Tour Velvet
Equipment
Slab city on the Korn Ferry Tour — Lead Tape Report
This week, we have our Tour Photographer, Greg Moore, on the ground at the OccuNet Classic at Tascosa Golf Club in Amarillo, Texas, for the 14th event of the 2026 Korn Ferry Tour season. With that, we see some great things in the Lead Tape Report as we roll into Amarillo.
Joel Thelen
Monday Qualifier, Joel Thelen is in the field this week. He has played on the Korn Ferry Tour for a full season in 2023, and he is back in action this week. A couple of clubs caught my eye this week in his bag.
First off: His trusted Titleist 816 H2 hybrid. This club came out in October of 2015, and it still remains strong in the bag. Also, take a look at this Odyssey White Hot OG 7, putting a capital S in the 7S model. This custom neck has some impressive lean for an arm-lock-style putter. The bottom of the putter is covered in tape for optimal weighting.





Mitchell Meissner
Taking a look at Mitchell Meissner’s bag this week, we have some great lead tape coverage. Top to bottom working from fairway metals, irons, and wedges. We can see on the short irons and wedges that there is tape at the base of the grip, adding a little counterbalance. Along with that, some tape on the short irons and wedges as well. Moving to his putter, he rolls the Odyssey 7 Bird putter. Meissner putts left-handed and strikes the ball right-handed.






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Joe Golfer
Oct 16, 2014 at 1:13 am
Ralph Maltby of Golfworks has been selling irons for quite some time that have adjustable weights in the heel and toe.
I think their latest is the Maltby KE4 iron head, which can be seen at the Golfworks site.
I’m not advocating it, as I don’t know anyone who has ever tried one.
I’m just saying that adjustable irons in this weighting respect have existed already for many years now.
Archie Bunker
Oct 14, 2014 at 4:26 pm
These patents are technically worthless, and only provide marketing direction to sell more product. I can only imagine the absurd claims that will be made for these “breakthroughs” in the future.
nikkyd
Oct 12, 2014 at 8:39 pm
I like the adjustable bounce on the callys. I was just thinking that the other day. Why couldnt a guy weld a flange on the sole of an old set of blades ? Callaway has done it. Bravo.
BigBoy
Oct 12, 2014 at 6:31 pm
the sheer stupidity of manufacturers today, it knows no bounds to that stupidity.
Tom
Oct 12, 2014 at 11:50 am
From the looks of the design concepts, it would appear that there is more on the clubs that can break or fall off.
Jay
Oct 12, 2014 at 10:47 am
Adjustable irons are ridiculous. Get fit for length,loft and lie and call it good. More does not equal better.
Tom
Oct 12, 2014 at 11:48 am
Amen brother…..amen.
moses
Oct 11, 2014 at 8:18 pm
Hmmm. If only the USGA would let us have COR .860 it would save the golf equipment industry for the next 10 years.
No
Oct 12, 2014 at 2:50 am
No, it wouldn’t. It would make it worse.
Joe Golfer
Oct 16, 2014 at 1:08 am
@No
the comment by @Moses was meant to be sarcastic.
Shelton Cooper
Oct 11, 2014 at 7:38 pm
So Nike will just be using the Mizuno harmonic impact technology then. Does Mizuno not have a patent on that already?
Josh
Oct 11, 2014 at 7:52 pm
That is different. Mizuno’s tech is about making the feel and sound good to the player. Nike’s idea is about actually determining where the ball hit on the club face or how much compression a player got from the ball. From what it reads it sounds like it will be an app based on sound. So instead of using impact tape or a high speed camera to determine where the ball hit on the face, the app will determine it based on the impact sound.
RAT
Oct 11, 2014 at 9:23 pm
I can do this myself. I can tell by sound and feel that it was a good strike or not.
MHendon
Oct 11, 2014 at 9:49 pm
Patents have become a joke and are virtually worthless.
1badbadger
Oct 18, 2014 at 4:18 am
I think some of these IDEAS are a joke, but patents can be very valuable. Golf equipment companies will aggressively protect their intellectual property, and if a competitor infringes on another manufacturer’s patents the settlements can be in the hundreds of millions of dollars.